


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
564 FNUS56 KSEW 101444 FWFSEW Fire Weather Planning Forecast for Western Washington National Weather Service Seattle WA 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .DISCUSSION...A gradual warming and drying trend will continue through early next week. At this time, this afternoon and Monday look to be the driest days with minimum RH values in the 25-35% range, with the lowest values being located within the southern Cascade foothills. There is still some uncertainty into how much cooler and moist air arrives Tuesday with a chance that Tuesday may continue to remain warm. Troughing will develop by midweek, which will help moderate temperatures and increase onshore flow across the region and bring slight chances for showers by late week. Forecast for 20 foot wind speed (valleys and ridge tops) are 10 minute averages reflecting RAWS winds. WAZ649-102315- North and Central Coastal Strip- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Mostly sunny. Areas of fog in the morning. * Max temperature.......68-78. * Min humidity..........56-71 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 6 mph in the afternoon. * Ridges/upr slopes...Light winds becoming northwest around 5 mph in the afternoon. * Mixing height.........400-800 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. Patchy fog in the evening. * Min temperature.......Around 58. * Max humidity..........89-near 100 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds 3 to 6 mph. * Ridges/upr slopes...Northwest winds 3 to 6 mph. * Mixing height.........400-500 ft AGL. * Transport winds.......Northwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......71-81. * Min humidity..........50-65 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 5 mph in the afternoon. * Ridges/upr slopes...North winds 3 to 6 mph. * Mixing height.........400-1000 ft AGL. * Transport winds.......Northeast around 5 mph shifting to the north in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest winds 3 to 6 mph. .TUESDAY...Sunny. Highs 71 to 81. Northeast winds around 3 mph shifting to the west around 9 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. Northwest winds 5 to 8 mph. .WEDNESDAY...Cooler. Partly sunny. Highs in the mid 60s. West winds 4 to 7 mph. .WEDNESDAY NIGHT...Mostly cloudy. Slight chance of showers after midnight. Lows in the mid 50s. West winds around 4 mph. .THURSDAY...Mostly cloudy. Slight chance of showers in the morning. Highs in the mid 60s. West winds around 3 mph. .FRIDAY...Mostly cloudy with slight chance of showers. Lows in the mid 50s. Highs 60 to 70. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs 61 to 71. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ650-102315- North Coastal Lowlands- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. Patchy fog in the morning. * Max temperature.......75-85. * Min humidity..........49-64 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming north around 4 mph in the afternoon. * Mixing height.........800-1800 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......56-66. * Max humidity..........71-86 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds around 3 mph in the evening becoming light. * Ridges/upr slopes...Northwest winds around 3 mph in the evening becoming light. * Mixing height.........500-900 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......77-87. * Min humidity..........43-58 percent. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 4 mph in the afternoon. * Ridges/upr slopes...Northeast winds 3 to 6 mph. * Mixing height.........800-1800 ft AGL. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Clear. Lows 59 to 69. Northwest winds around 3 mph in the evening becoming light. .TUESDAY...Sunny. Highs 77 to 87. Light winds becoming west around 7 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds 3 to 6 mph. .WEDNESDAY...Partly sunny. Highs 64 to 74. West winds 3 to 6 mph. .WEDNESDAY NIGHT...Mostly cloudy. Slight chance of showers after midnight. Lows in the mid 50s. West winds around 3 mph. .THURSDAY...Mostly cloudy. Slight chance of showers in the morning. Highs 62 to 72. Light winds. .FRIDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs 61 to 71 valleys...56 to 66 ridges. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs 62 to 72. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ651-102315- Central Coastal Lowlands- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. Patchy fog in the morning. * Max temperature.......79-89. * Min humidity..........40-55 percent...except 46-59 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northwest around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming west around 3 mph in the afternoon. * Mixing height.........1000-2000 ft AGL. * Transport winds.......Northeast around 5 mph shifting to the north in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......57-67. * Max humidity..........77-92 percent. * 20-foot winds......... * Valleys/lwr slopes..Northwest winds up to 3 mph. * Ridges/upr slopes...Light winds. * Mixing height.........400-1000 ft AGL. * Transport winds.......Northwest around 5 mph shifting to the northeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......81-91. * Min humidity..........40-55 percent...except 48-58 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Light winds becoming northeast around 4 mph in the afternoon. * Ridges/upr slopes...Light winds becoming southwest around 3 mph in the afternoon. * Mixing height.........500 ft AGL increasing to 2600 ft AGL in the afternoon. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest winds around 3 mph in the evening becoming light. .TUESDAY...Sunny. Highs 81 to 91 valleys...76 to 86 ridges. Light winds becoming west around 6 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. West winds 5 to 8 mph. .WEDNESDAY...Not as warm. Partly sunny. Highs 65 to 75 valleys... 60 to 70 ridges. West winds 5 to 8 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 50s. West winds around 5 mph. .THURSDAY...Mostly cloudy. Slight chance of showers in the morning. Highs 64 to 74 valleys...59 to 69 ridges. West winds around 4 mph. .FRIDAY...Mostly cloudy with slight chance of showers. Lows in the mid 50s. Highs 64 to 74 valleys...58 to 68 ridges. .SATURDAY...Mostly cloudy with a chance of showers. Lows in the mid 50s. Highs 65 to 75 valleys...59 to 69 ridges. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ652-102315- West Portion of the Olympic Mountains- 744 AM PDT Sun Aug 10 2025 .Today... * Sky/weather...........Sunny. * Max temperature.......77-87...except 73-83 ridges. * Min humidity..........42-57 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...North winds around 4 mph shifting to the northwest in the afternoon. * Mixing height.........1000-2000 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16000 Feet. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......56-66. * Max humidity..........64-79 percent. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...North winds 3 to 5 mph. * Mixing height.........300-1000 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......79-89...except 74-84 ridges. * Min humidity..........38-53 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the northwest around 4 mph in the afternoon. * Mixing height.........900-1900 ft AGL. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY NIGHT...Clear. Freezing level 16000 feet. Lows in the mid 60s. North winds around 4 mph shifting to the northeast around 5 mph after midnight. .TUESDAY...Sunny. Freezing level 15500 feet. Highs 75 to 85. Northeast winds around 5 mph shifting to the west around 7 mph in the afternoon. .TUESDAY NIGHT...Cooler. Mostly clear. Freezing level 15000 feet. Lows in the mid 50s. West winds 5 to 8 mph. .WEDNESDAY...Cooler. Mostly sunny. Freezing level 14500 feet. Highs 60 to 70. West winds 4 to 7 mph. .WEDNESDAY NIGHT...Partly cloudy. Slight chance of showers after midnight. Freezing level 13500 feet. Lows 47 to 57. West winds around 5 mph. .THURSDAY...Partly sunny with slight chance of showers. Freezing level 13500 feet. Highs 59 to 69 valleys...54 to 64 ridges. West winds around 4 mph. .FRIDAY...Mostly cloudy. Slight chance of showers. Freezing level 13500 feet. Lows in the lower 50s. Highs 55 to 65. .SATURDAY...Mostly cloudy. Chance of showers. Freezing level 13500 feet. Lows in the lower 50s. Highs 59 to 69 valleys...54 to 64 ridges. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ661-102315- East Portion of the Olympic Mountains- 744 AM PDT Sun Aug 10 2025 .Today... * Sky/weather...........Sunny. * Max temperature.......76-86...except 72-82 ridges. * Min humidity..........43-58 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...Northeast winds 3 to 6 mph. * Mixing height.........900-1900 ft AGL. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16000 Feet. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......54-64. * Max humidity..........66-81 percent...except 59-74 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 2 to 3 mph. * Ridges/upr slopes...Northwest winds 3 to 5 mph. * Mixing height.........400-1000 ft AGL. * Transport winds.......Northwest around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......78-88...except 72-82 ridges. * Min humidity..........36-51 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 5 mph. * Ridges/upr slopes...Northeast winds 4 to 7 mph. * Mixing height.........800-1800 ft AGL. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY NIGHT...Clear. Freezing level 16000 feet. Lows 59 to 69. Northwest winds 3 to 6 mph. .TUESDAY...Sunny. Freezing level 15500 feet. Highs 78 to 88 valleys...70 to 80 ridges. Northwest winds 4 to 7 mph. .TUESDAY NIGHT...Cooler. Mostly clear. Freezing level 15000 feet. Lows 50 to 60. West winds 4 to 7 mph. .WEDNESDAY...Sunny. Freezing level 14500 feet. Highs 65 to 75 valleys...58 to 68 ridges. West winds 4 to 7 mph. .WEDNESDAY NIGHT...Partly cloudy. Freezing level 13500 feet. Lows 46 to 56. West winds around 4 mph. .THURSDAY...Partly sunny. Freezing level 13500 feet. Highs 60 to 70 valleys...53 to 63 ridges. West winds around 4 mph. .FRIDAY...Mostly cloudy. Slight chance of showers. Freezing level 13500 feet. Lows 46 to 56. Highs 60 to 70 valleys...52 to 62 ridges. .SATURDAY...Mostly cloudy. Chance of showers. Freezing level 13500 feet. Lows 47 to 57. Highs 60 to 70 valleys...53 to 63 ridges. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ653-102315- Strait of Juan De Fuca and Northwest Interior Lowlands- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. * Max temperature.......71-81. * Min humidity..........49-64 percent. * 20-foot winds.........Northwest winds 4 to 7 mph. * Mixing height.........700-1100 ft AGL. * Transport winds.......Northwest around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......55-65. * Max humidity..........72-87 percent. * 20-foot winds.........Northwest winds around 3 mph in the evening becoming light. * Mixing height.........500-600 ft AGL. * Transport winds.......Northwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......73-83. * Min humidity..........42-57 percent. * 20-foot winds.........North winds 5 to 8 mph. * Mixing height.........600-1100 ft AGL. * Transport winds.......North around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Mostly clear. Lows 58 to 68. Northwest winds 3 to 6 mph. .TUESDAY...Sunny. Highs 77 to 87. Northwest winds 4 to 7 mph. .TUESDAY NIGHT...Mostly clear. Lows 54 to 64. West winds 4 to 7 mph. .WEDNESDAY...Mostly sunny. Highs 68 to 78. Southwest winds 4 to 7 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 61. West winds around 5 mph. .THURSDAY...Mostly cloudy. Slight chance of showers in the morning. Highs 65 to 75. South winds around 5 mph. .FRIDAY...Mostly cloudy with slight chance of showers. Lows 51 to 61. Highs 64 to 74. .SATURDAY...Mostly cloudy. Chance of showers. Lows in the mid 50s. Highs 65 to 75. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ654-102315- Central and South Puget Sound Lowlands- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. * Max temperature.......76-86. * Min humidity..........40-55 percent. * 20-foot winds.........Northeast winds 5 to 8 mph. * Mixing height.........1200-2200 ft AGL. * Transport winds.......North around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......57-67. * Max humidity..........72-87 percent. * 20-foot winds.........North winds 3 to 6 mph. * Mixing height.........500-1300 ft AGL. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......78-88. * Min humidity..........37-52 percent. * 20-foot winds.........Northeast winds 5 to 9 mph. * Mixing height.........1000-2000 ft AGL. * Transport winds.......North 10 to 15 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Clear. Lows in the mid 60s. North winds 3 to 7 mph. .TUESDAY...Warmer, sunny. Highs 84 to 94. North winds around 3 mph shifting to the east around 4 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows around 60. West winds 5 to 8 mph. .WEDNESDAY...Not as warm. Mostly sunny. Highs in the mid 70s. Southwest winds 6 to 9 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows 52 to 62. Southwest winds around 6 mph. .THURSDAY...Mostly cloudy. Slight chance of showers in the morning. Highs in the lower 70s. South winds around 5 mph. .FRIDAY...Mostly cloudy with slight chance of showers. Lows in the mid 50s. Highs in the lower 70s. .SATURDAY...Mostly cloudy. Chance of showers. Lows in the mid 50s. Highs in the lower 70s. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ655-102315- Black Hills and Southwest Interior Lowlands- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. * Max temperature.......83-93. * Min humidity..........35-50 percent. * 20-foot winds.........Northeast winds 4 to 7 mph. * Mixing height.........1500-2500 ft AGL. * Transport winds.......Northeast around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......57-67. * Max humidity..........67-82 percent. * 20-foot winds.........North winds 3 to 5 mph. * Mixing height.........600-1600 ft AGL. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......85-95. * Min humidity..........32-47 percent. * 20-foot winds.........Northeast winds 3 to 6 mph. * Mixing height.........1200-2200 ft AGL. * Transport winds.......Northeast around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Clear. Lows 59 to 69. North winds 3 to 6 mph. .TUESDAY...Sunny. Highs in the lower 90s. Light winds becoming northwest around 5 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the upper 50s. West winds 5 to 8 mph. .WEDNESDAY...Not as warm. Mostly sunny. Highs in the mid 70s. Southwest winds 6 to 9 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 50s. West winds around 5 mph. .THURSDAY...Mostly cloudy. Slight chance of showers in the morning. Highs in the lower 70s. Southwest winds around 4 mph. .FRIDAY...Mostly cloudy. Slight chance of showers. Lows in the lower 50s. Highs in the lower 70s. .SATURDAY...Mostly cloudy. Slight chance of showers. Lows in the mid 50s. Highs in the lower 70s. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ656-102315- Northeast Puget Sound Lowlands Generally Below 1500 Feet- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. * Max temperature.......78-88. * Min humidity..........37-52 percent. * 20-foot winds.........Light winds becoming west around 5 mph in the afternoon. * Mixing height.........1500-2500 ft AGL. * Transport winds.......Northwest 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......56-66. * Max humidity..........76-91 percent. * 20-foot winds.........West winds around 3 mph in the evening becoming light. * Mixing height.........900-1600 ft AGL. * Transport winds.......Northwest around 10 mph shifting to the northeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......81-91. * Min humidity..........33-48 percent. * 20-foot winds.........Light winds becoming northwest around 6 mph in the afternoon. * Mixing height.........1400-2400 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Mostly clear. Lows 59 to 69. Northwest winds around 5 mph shifting to the northeast around 3 mph after midnight. .TUESDAY...Sunny. Highs 83 to 93. East winds around 3 mph shifting to the west around 6 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows around 60. West winds around 5 mph shifting to the southwest around 3 mph after midnight. .WEDNESDAY...Mostly sunny. Highs 70 to 80. Southwest winds 4 to 7 mph. .WEDNESDAY NIGHT...Mostly cloudy. Slight chance of showers after midnight. Lows in the upper 50s. Southwest winds around 4 mph. .THURSDAY...Mostly cloudy with slight chance of showers. Highs 66 to 76. Southwest winds around 3 mph. .FRIDAY...Mostly cloudy with slight chance of showers. Lows in the mid 50s. Highs 67 to 77. .SATURDAY...Mostly cloudy. Chance of showers. Lows in the mid 50s. Highs 67 to 77. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ657-102315- Southeast Puget Sound Lowlands Generally Below 1500 Feet- 744 AM PDT Sun Aug 10 2025 ...HEAT ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM PDT TUESDAY... .Today... * Sky/weather...........Sunny. * Max temperature.......80-90. * Min humidity..........35-50 percent. * 20-foot winds.........North winds 3 to 6 mph. * Mixing height.........1400-2400 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......55-65. * Max humidity..........72-87 percent. * 20-foot winds.........North winds around 3 mph in the evening becoming light. * Mixing height.........600-1600 ft AGL. * Transport winds.......Northeast 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......80-90. * Min humidity..........35-50 percent. * 20-foot winds.........North winds 3 to 6 mph. * Mixing height.........1200-2200 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. .MONDAY NIGHT...Clear. Lows in the mid 60s. North winds around 4 mph in the evening becoming light. .TUESDAY...Sunny. Highs around 90. Light winds becoming northwest around 4 mph in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the lower 60s. West winds around 5 mph shifting to the south around 4 mph after midnight. .WEDNESDAY...Not as warm. Mostly sunny. Highs in the upper 70s. Southwest winds 4 to 7 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows 52 to 62. Southwest winds around 5 mph. .THURSDAY...Mostly cloudy. Highs in the lower 70s. Southwest winds around 4 mph. .FRIDAY...Mostly cloudy. Lows 51 to 61. Highs in the lower 70s. .SATURDAY...Mostly cloudy. Slight chance of showers. Lows 52 to 62. Highs in the mid 70s. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ658-102315- West Slopes of the North Cascades Generally above 1500 Feet- 744 AM PDT Sun Aug 10 2025 .Today... * Sky/weather...........Sunny. * Max temperature.......79-89...except 74-84 ridges. * Min humidity..........37-52 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 2 to 5 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the west around 5 mph in the afternoon. * Mixing height.........800 ft AGL increasing to 2900 ft AGL in the afternoon. * Transport winds.......Northeast around 5 mph shifting to the west in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........15500 Feet. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......55-65...except 51-61 ridges. * Max humidity..........73-88 percent...except 68-83 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley 3 to 4 mph. * Ridges/upr slopes...West winds around 6 mph shifting to the east around 4 mph after midnight. * Mixing height.........500-1200 ft AGL. * Transport winds.......West around 10 mph shifting to the northeast after midnight. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......80-90...except 75-85 ridges. * Min humidity..........33-48 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 5 mph. * Ridges/upr slopes...Northeast winds around 5 mph shifting to the north in the afternoon. * Mixing height.........700 ft AGL increasing to 2800 ft AGL in the afternoon. * Transport winds.......Northeast around 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY NIGHT...Mostly clear. Freezing level 16000 feet. Lows 56 to 66. Northwest winds around 6 mph shifting to the east after midnight. .TUESDAY...Sunny. Freezing level 15000 feet. Highs 79 to 89 valleys...72 to 82 ridges. East winds around 5 mph shifting to the west around 7 mph in the afternoon. .TUESDAY NIGHT...Cooler. Mostly clear. Freezing level 15000 feet. Lows in the upper 50s valleys...in the mid 50s ridges. West winds 5 to 8 mph. .WEDNESDAY...Cooler. Mostly sunny. Freezing level 14000 feet. Highs 65 to 75 valleys...58 to 68 ridges. Southwest winds 5 to 8 mph. .WEDNESDAY NIGHT...Cooler. Mostly cloudy. Slight chance of showers after midnight. Freezing level 13000 feet. Lows 50 to 60 valleys... in the upper 40s ridges. West winds around 5 mph. .THURSDAY...Partly sunny with slight chance of showers. Freezing level 12500 feet. Highs 59 to 69 valleys...52 to 62 ridges. West winds around 5 mph. .FRIDAY...Mostly cloudy. Slight chance of showers. Freezing level 13000 feet. Lows in the lower 50s valleys...in the upper 40s ridges. Highs 60 to 70 valleys...53 to 63 ridges. .SATURDAY...Mostly cloudy. Chance of showers. Freezing level 13500 feet. Lows in the mid 50s valleys...in the upper 40s ridges. Highs 61 to 71 valleys...54 to 64 ridges. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ WAZ659-102315- West Slopes of the Central Cascades Generally above 1500 Feet- 744 AM PDT Sun Aug 10 2025 .Today... * Sky/weather...........Sunny. * Max temperature.......81-91...except 74-84 ridges. * Min humidity..........35-50 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the northwest around 4 mph in the afternoon. * Mixing height.........700 ft AGL increasing to 2700 ft AGL in the afternoon. * Transport winds.......Northeast around 5 mph shifting to the northwest in the afternoon. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......54-64. * Max humidity..........64-79 percent...except 59-74 percent ridges. * 20-foot winds......... * Valleys/lwr slopes..Downslope/downvalley around 3 mph. * Ridges/upr slopes...North winds 3 to 6 mph. * Mixing height.........500-1100 ft AGL. * Transport winds.......North 5 to 10 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......82-92...except 76-86 ridges. * Min humidity..........33-48 percent. * 20-foot winds......... * Valleys/lwr slopes..Upslope/upvalley 3 to 4 mph. * Ridges/upr slopes...Northeast winds around 3 mph shifting to the northwest around 4 mph in the afternoon. * Mixing height.........500 ft AGL increasing to 2500 ft AGL in the afternoon. * Transport winds.......North around 5 mph. * CWR (>0.25)...........0 percent. * Chance of Lightning...0 percent. * Freezing level........16500 Feet. .MONDAY NIGHT...Mostly clear. Freezing level 16000 feet. Lows in the lower 60s. Northwest winds around 4 mph shifting to the east around 3 mph after midnight. .TUESDAY...Sunny. Freezing level 15500 feet. Highs 81 to 91 valleys...74 to 84 ridges. Southeast winds around 3 mph shifting to the northwest around 7 mph in the afternoon. .TUESDAY NIGHT...Cooler. Mostly clear. Freezing level 15500 feet. Lows 51 to 61. West winds 4 to 7 mph. .WEDNESDAY...Sunny. Freezing level 15000 feet. Highs 66 to 76 valleys...60 to 70 ridges. West winds 5 to 8 mph. .WEDNESDAY NIGHT...Cooler. Partly cloudy. Freezing level 14000 feet. Lows 46 to 56. West winds around 5 mph. .THURSDAY...Partly sunny. Freezing level 13500 feet. Highs 61 to 71 valleys...54 to 64 ridges. West winds around 4 mph. .FRIDAY...Mostly cloudy. Freezing level 14000 feet. Lows 44 to 54. Highs 61 to 71 valleys...54 to 64 ridges. .SATURDAY...Mostly cloudy. Slight chance of showers. Freezing level 14500 feet. Lows 46 to 56. Highs 63 to 73 valleys...55 to 65 ridges. .8 TO 14 day Outlook for Aug 17 - 23, 2025 Near normal temperatures and near normal precipitation. $$ www.weather.gov/seattle