Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
234 FNUS56 KSEW 062331 FWFSEW Fire Weather Planning Forecast for Western Washington National Weather Service Seattle WA 330 PM PST Sat Dec 6 2025 .DISCUSSION... Active weather continues, with a certain increase in activity as a strong atmospheric river arrives early next week. Heavy rain, river flooding, wind and high elevation snow are in the forecast for the foreseeable future. Coastal flooding due to high astronomical tides will remain minor into the first part of the week. Forecast for 20 foot wind speed (valleys and ridge tops) are 10 minute averages reflecting RAWS winds. WAZ649-071200- North and Central Coastal Strip- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Cloudy. Rain likely in the evening, then rain after midnight. * Chance of precip.....85%. * Min temperature......41-51. * Max humidity.........94-100 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds 5 to 9 mph. Gusts up to 30 mph after midnight. * Ridges/upr slopes...South winds 5 to 12 mph. Gusts up to 30 mph after midnight. * Mixing height........400-600 ft AGL. * Transport winds......South 10 to 15 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Chance of rain in the morning, then rain in the afternoon. * Chance of precip.....65%. * Max temperature......47-57. * Min humidity.........89-100 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 8 to 11 mph with gusts to around 30 mph. * Ridges/upr slopes...Southwest winds 9 to 12 mph with gusts to around 30 mph. * Mixing height........600-1200 ft AGL. * Transport winds......Southwest around 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......43-53. * Max humidity.........94-100 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds 7 to 10 mph. * Ridges/upr slopes...South winds 8 to 12 mph with gusts to around 25 mph. * Mixing height........600-900 ft AGL. * Transport winds......Southwest around 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......49-59. * Min humidity.........84-99 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 11 to 15 mph with gusts to around 40 mph. * Ridges/upr slopes...Southwest winds 11 to 18 mph with gusts to around 50 mph. * Mixing height........600-900 ft AGL. * Transport winds......Southwest 20 to 25 mph. .TUESDAY THROUGH WEDNESDAY...Rain. Lows in the mid 40s. Highs in the lower 50s. South winds 6 to 13 mph. .THURSDAY...Rain. Lows in the mid 40s. Highs in the lower 50s. South winds around 6 mph. .FRIDAY...Rain. Lows in the mid 40s. Highs in the mid 50s. .SATURDAY...Rain likely. Lows in the mid 40s. Highs in the lower 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ650-071200- North Coastal Lowlands- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Cloudy. Chance of rain in the evening, then rain after midnight. * Chance of precip.....75%. * Min temperature......38-48. * Max humidity.........85-100 percent. * 20-foot winds........ * Valleys/lwr slopes..Southeast winds 5 to 8 mph. Gusts up to 25 mph after midnight. * Ridges/upr slopes...Southeast winds 5 to 10 mph. Gusts up to 30 mph after midnight. * Mixing height........600-700 ft AGL. * Transport winds......South around 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Rain. * Chance of precip.....95%. * Max temperature......44-54. * Min humidity.........84-99 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 7 to 10 mph with gusts to around 30 mph. * Ridges/upr slopes...Southwest winds 8 to 11 mph with gusts to around 30 mph. * Mixing height........700-1300 ft AGL. * Transport winds......Southwest around 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......40-50. * Max humidity.........85-100 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds 6 to 9 mph with gusts to around 25 mph. * Ridges/upr slopes...South winds 7 to 10 mph with gusts to around 25 mph. * Mixing height........700-1000 ft AGL. * Transport winds......South 10 to 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......47-57. * Min humidity.........82-97 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 9 to 13 mph with gusts to around 45 mph. * Ridges/upr slopes...Southwest winds 9 to 15 mph with gusts to around 50 mph. * Mixing height........700-1100 ft AGL. * Transport winds......Southwest 15 to 20 mph. .TUESDAY THROUGH WEDNESDAY...Rain. Lows in the mid 40s. Highs 45 to 55. South winds 6 to 11 mph. .THURSDAY...Rain. Lows in the lower 40s. Highs 44 to 54. South winds around 4 mph. .FRIDAY...Rain. Lows in the mid 40s. Highs 47 to 57. .SATURDAY...Rain likely. Lows in the mid 40s. Highs in the lower 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ651-071200- Central Coastal Lowlands- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Cloudy. Chance of rain in the evening, then rain after midnight. * Chance of precip.....75%. * Min temperature......38-48. * Max humidity.........99 percent. * 20-foot winds........ * Valleys/lwr slopes..Southeast winds 3 to 6 mph. * Ridges/upr slopes...Southeast winds 3 to 8 mph. * Mixing height........400-600 ft AGL. * Transport winds......South 5 to 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Chance of rain in the morning, then rain in the afternoon. * Chance of precip.....65%. * Max temperature......44-54. * Min humidity.........91-100 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds around 9 mph shifting to the southwest in the afternoon. Gusts up to 25 mph. * Ridges/upr slopes...Southeast winds around 9 mph shifting to the west in the afternoon. Gusts up to 25 mph. * Mixing height........600-1400 ft AGL. * Transport winds......Southwest around 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......39-49. * Max humidity.........98 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 5 to 8 mph. * Ridges/upr slopes...Southwest winds 5 to 8 mph. * Mixing height........600-900 ft AGL. * Transport winds......Southwest around 10 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......47-57. * Min humidity.........90-99 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 9 to 15 mph with gusts to around 40 mph. * Ridges/upr slopes...Southwest winds 9 to 15 mph with gusts to around 40 mph. * Mixing height........500-1300 ft AGL. * Transport winds......Southwest 15 to 20 mph. .TUESDAY THROUGH WEDNESDAY...Rain. Lows in the mid 40s. Highs in the lower 50s. South winds 6 to 14 mph. .THURSDAY...Rain. Lows in the lower 40s. Highs in the lower 50s. Southwest winds around 5 mph. .FRIDAY...Rain likely. Lows in the mid 40s. Highs in the mid 50s. .SATURDAY...Rain likely. Lows in the mid 40s. Highs in the mid 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ652-071200- West Portion of the Olympic Mountains- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Cloudy. Chance of rain in the evening. Slight chance of snow through the night. Rain after midnight. * Chance of precip.....75%. * Min temperature......31-41. * Max humidity.........86-100 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds 6 to 9 mph. Gusts up to 25 mph after midnight. * Ridges/upr slopes...South winds 6 to 9 mph. Gusts up to 25 mph after midnight. * Snow level...........4500 feet. * Mixing height........300-600 ft AGL. * Transport winds......South around 10 mph. .SUNDAY... * Sky/weather..........Cloudy. Rain and slight chance of snow. * Chance of precip.....95%. * Max temperature......37-47. * Min humidity.........84-99 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 8 to 11 mph. Gusts up to 30 mph. * Ridges/upr slopes...Southwest winds 8 to 11 mph with gusts to around 30 mph. * Snow level...........5500 feet. * Mixing height........400-800 ft AGL. * Transport winds......Southwest around 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain and snow. * Chance of precip.....100%. * Min temperature......33-43. * Max humidity.........85-100 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 7 to 10 mph with gusts to around 25 mph. * Ridges/upr slopes...Southwest winds 7 to 10 mph with gusts to around 25 mph. * Snow level...........4500 feet. * Mixing height........500-800 ft AGL. * Transport winds......Southwest around 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......40-50. * Min humidity.........80-95 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 11 to 14 mph with gusts to around 45 mph. * Ridges/upr slopes...Southwest winds 11 to 14 mph with gusts to around 50 mph. * Snow level...........7000 feet. * Mixing height........500-800 ft AGL. * Transport winds......Southwest 15 to 20 mph. .TUESDAY...Rain and snow. Snow level 4500 feet. Lows 34 to 44. Highs 38 to 48. Southwest winds 6 to 15 mph. .WEDNESDAY...Rain and slight chance of snow. Snow level 5500 feet. Lows 34 to 44. Highs 38 to 48. Southwest winds around 8 mph. .THURSDAY...Rain and slight chance of snow. Snow level 5500 feet. Lows 33 to 43. Highs 39 to 49. Southwest winds around 6 mph. .FRIDAY...Rain and slight chance of snow. Snow level 6500 feet. Lows 37 to 47. Highs 41 to 51. .SATURDAY...Rain likely and slight chance of snow. Snow level 6000 feet. Lows 37 to 47. Highs 42 to 52. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ661-071200- East Portion of the Olympic Mountains- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Cloudy. Slight chance of rain and snow in the evening, then rain and snow after midnight. * Chance of precip.....60%. * Min temperature......30-40. * Max humidity.........82-97 percent. * 20-foot winds........ * Valleys/lwr slopes..Downslope/downvalley around 5 mph. * Ridges/upr slopes...Southwest winds 5 to 9 mph. Gusts up to 25 mph after midnight. * Snow level...........4500 feet. * Mixing height........400-600 ft AGL. * Transport winds......Southwest around 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Rain and slight chance of snow. * Chance of precip.....95%. * Max temperature......42-52...except 36-46 ridges. * Min humidity.........81-96 percent...except 76-91 percent ridges. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 8 to 11 mph with gusts to around 30 mph. * Ridges/upr slopes...Southwest winds 9 to 12 mph with gusts to around 30 mph. * Snow level...........5500 feet. * Mixing height........500-1100 ft AGL. * Transport winds......Southwest 15 to 20 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain and snow. * Chance of precip.....100%. * Min temperature......32-42. * Max humidity.........82-97 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 7 to 10 mph with gusts to around 30 mph. * Ridges/upr slopes...Southwest winds 7 to 10 mph with gusts to around 30 mph. * Snow level...........4500 feet. * Mixing height........600-900 ft AGL. * Transport winds......Southwest around 15 mph. .MONDAY... * Sky/weather..........Cloudy. Slight chance of snow in the morning. Rain through the day. * Chance of precip.....100%. * Max temperature......44-54...except 39-49 ridges. * Min humidity.........73-88 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 11 to 14 mph. Gusts up to 40 mph increasing to 50 mph in the afternoon. * Ridges/upr slopes...Southwest winds 11 to 16 mph with gusts to around 50 mph. * Snow level...........6500 feet. * Mixing height........600-900 ft AGL. * Transport winds......Southwest 20 to 25 mph. .TUESDAY...Rain and snow. Snow level 4500 feet. Lows 32 to 42. Highs 40 to 50 valleys...33 to 43 ridges. Southwest winds 7 to 16 mph. .WEDNESDAY...Rain and slight chance of snow. Snow level 5500 feet. Lows 32 to 42. Highs 41 to 51 valleys...in the upper 30s ridges. Southwest winds around 7 mph. .THURSDAY...Rain and snow likely. Snow level 5500 feet. Lows 31 to 41. Highs 37 to 47. Southwest winds around 6 mph. .FRIDAY THROUGH SATURDAY...Rain likely and slight chance of snow. Snow level 6250 feet. Lows 35 to 45. Highs 41 to 51. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ653-071200- Strait of Juan De Fuca and Northwest Interior Lowlands- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Mostly cloudy. Chance of rain. * Chance of precip.....50%. * Min temperature......38-48. * Max humidity.........84-99 percent. * 20-foot winds........Southeast winds 6 to 9 mph. Gusts up to 25 mph after midnight. * Mixing height........500-600 ft AGL. * Transport winds......South around 10 mph. .SUNDAY... * Sky/weather..........Partly sunny. Rain in the morning, then rain likely in the afternoon. * Chance of precip.....85%. * Max temperature......46-56. * Min humidity.........81-96 percent. * 20-foot winds........South winds 8 to 11 mph with gusts to around 30 mph. * Mixing height........700-1100 ft AGL. * Transport winds......South around 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......40-50. * Max humidity.........84-99 percent. * 20-foot winds........South winds 6 to 9 mph. * Mixing height........700-800 ft AGL. * Transport winds......South 10 to 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......48-58. * Min humidity.........77-92 percent. * 20-foot winds........South winds 10 to 13 mph with gusts to around 40 mph. * Mixing height........700-900 ft AGL. * Transport winds......South 15 to 20 mph. .TUESDAY...Rain. Lows 39 to 49. Highs around 50. South winds 7 to 12 mph. .WEDNESDAY...Rain. Lows 38 to 48. Highs around 50. Southwest winds around 6 mph. .THURSDAY...Rain likely. Lows 37 to 47. Highs in the upper 40s. Southeast winds around 4 mph. .FRIDAY...Rain likely. Lows in the lower 40s. Highs in the lower 50s. .SATURDAY...Rain likely. Lows in the mid 40s. Highs in the lower 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ654-071200- Central and South Puget Sound Lowlands- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Mostly cloudy. Chance of rain in the evening, then rain after midnight. * Chance of precip.....75%. * Min temperature......39-49. * Max humidity.........86-100 percent. * 20-foot winds........South winds 5 to 8 mph. * Mixing height........500-700 ft AGL. * Transport winds......South around 10 mph. .SUNDAY... * Sky/weather..........Partly sunny. Rain. * Chance of precip.....90%. * Max temperature......46-56. * Min humidity.........82-97 percent. * 20-foot winds........South winds 9 to 12 mph. * Mixing height........800-1400 ft AGL. * Transport winds......Southwest 10 to 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......40-50. * Max humidity.........86-100 percent. * 20-foot winds........South winds 8 to 11 mph. * Mixing height........700-1000 ft AGL. * Transport winds......Southwest 10 to 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......48-58. * Min humidity.........78-93 percent. * 20-foot winds........South winds 9 to 15 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon. * Mixing height........600-1400 ft AGL. * Transport winds......South around 15 mph increasing to southwest around 25 mph in the afternoon. .TUESDAY THROUGH WEDNESDAY...Rain. Lows 39 to 49. Highs in the lower 50s. South winds 6 to 14 mph. .THURSDAY...Rain likely. Lows in the lower 40s. Highs in the lower 50s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with rain likely. Lows in the mid 40s. Highs in the mid 50s. .SATURDAY...Mostly cloudy with rain likely. Lows in the mid 40s. Highs in the lower 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ655-071200- Black Hills and Southwest Interior Lowlands- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Cloudy. Chance of rain in the evening, then rain after midnight. * Chance of precip.....75%. * Min temperature......37-47. * Max humidity.........86-100 percent. * 20-foot winds........South winds 3 to 6 mph. * Mixing height........600-800 ft AGL. * Transport winds......South 5 to 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Rain. * Chance of precip.....95%. * Max temperature......46-56. * Min humidity.........83-98 percent. * 20-foot winds........South winds 8 to 11 mph with gusts to around 30 mph. * Mixing height........800-1600 ft AGL. * Transport winds......Southwest around 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......40-50. * Max humidity.........86-100 percent. * 20-foot winds........South winds 5 to 8 mph. * Mixing height........700-1000 ft AGL. * Transport winds......Southwest around 10 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......49-59. * Min humidity.........83-98 percent. * 20-foot winds........South winds 9 to 14 mph with gusts to around 40 mph. * Mixing height........600-1600 ft AGL. * Transport winds......Southwest 15 to 20 mph. .TUESDAY THROUGH WEDNESDAY...Rain. Lows in the mid 40s. Highs in the lower 50s. South winds 6 to 14 mph. .THURSDAY...Rain. Lows in the lower 40s. Highs in the lower 50s. Southwest winds around 5 mph. .FRIDAY...Mostly cloudy with rain likely. Lows in the mid 40s. Highs in the mid 50s. .SATURDAY...Mostly cloudy with a chance of rain. Lows in the mid 40s. Highs in the mid 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ656-071200- Northeast Puget Sound Lowlands Generally Below 1500 Feet- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Mostly cloudy. Chance of rain. * Chance of precip.....50%. * Min temperature......35-45. * Max humidity.........84-99 percent. * 20-foot winds........Southeast winds 4 to 7 mph. * Mixing height........1000-1200 ft AGL. * Transport winds......South around 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Rain. * Chance of precip.....100%. * Max temperature......41-51. * Min humidity.........83-98 percent. * 20-foot winds........Southeast winds 5 to 8 mph. Gusts up to 25 mph in the morning. * Mixing height........1100-1500 ft AGL. * Transport winds......South 10 to 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain showers and slight chance of thunderstorms in the evening, then rain after midnight. * Chance of precip.....100%. * Min temperature......37-47. * Max humidity.........83-98 percent. * 20-foot winds........South winds 5 to 8 mph. * Mixing height........1200-1400 ft AGL. * Transport winds......South around 10 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......43-53. * Min humidity.........80-95 percent. * 20-foot winds........South winds 7 to 10 mph with gusts to around 35 mph. * Mixing height........1100-1300 ft AGL. * Transport winds......South 10 to 15 mph. .TUESDAY THROUGH WEDNESDAY...Rain. Lows 38 to 48. Highs 44 to 54. South winds 6 to 11 mph. .THURSDAY...Rain likely. Lows 35 to 45. Highs 43 to 53. Southeast winds around 3 mph. .FRIDAY THROUGH SATURDAY...Rain likely. Lows in the lower 40s. Highs 47 to 57. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ657-071200- Southeast Puget Sound Lowlands Generally Below 1500 Feet- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Mostly cloudy. Chance of rain in the evening, then rain after midnight. * Chance of precip.....75%. * Min temperature......39-49. * Max humidity.........90-100 percent. * 20-foot winds........South winds 4 to 7 mph. * Mixing height........700-900 ft AGL. * Transport winds......South around 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Rain. * Chance of precip.....95%. * Max temperature......46-56. * Min humidity.........85-100 percent. * 20-foot winds........South winds 6 to 9 mph with gusts to around 25 mph. * Mixing height........800-1500 ft AGL. * Transport winds......South 10 to 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Min temperature......41-51. * Max humidity.........88-100 percent. * 20-foot winds........South winds 6 to 9 mph. Gusts up to 25 mph in the evening. * Mixing height........900-1200 ft AGL. * Transport winds......Southwest 10 to 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain. * Chance of precip.....100%. * Max temperature......48-58. * Min humidity.........85-100 percent. * 20-foot winds........South winds 7 to 11 mph with gusts to around 40 mph. * Mixing height........700-1400 ft AGL. * Transport winds......Southwest 15 to 20 mph. .TUESDAY THROUGH WEDNESDAY...Rain. Lows 40 to 50. Highs in the lower 50s. South winds 5 to 12 mph. .THURSDAY...Rain. Lows in the mid 40s. Highs in the lower 50s. South winds around 4 mph. .FRIDAY...Mostly cloudy with rain likely. Lows in the mid 40s. Highs in the mid 50s. .SATURDAY...Mostly cloudy with a chance of rain. Lows in the mid 40s. Highs in the mid 50s. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ658-071200- West Slopes of the North Cascades Generally above 1500 Feet- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Mostly cloudy. Snow and rain likely in the evening, then chance of rain and snow after midnight. * Chance of precip.....60%. * Min temperature......32-42...except 27-37 ridges. * Max humidity.........81-96 percent. * 20-foot winds........ * Valleys/lwr slopes..Downslope/downvalley around 5 mph. * Ridges/upr slopes...Southwest winds 7 to 10 mph. * Snow level...........4000 feet. * Mixing height........700-800 ft AGL. * Transport winds......Southwest around 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Rain and snow. * Chance of precip.....100%. * Max temperature......38-48...except 31-41 ridges. * Min humidity.........79-94 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds 7 to 10 mph. * Ridges/upr slopes...Southwest winds 7 to 10 mph with gusts to around 25 mph. * Snow level...........5000 feet. * Mixing height........600-800 ft AGL. * Transport winds......Southwest 10 to 15 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Rain and snow. * Chance of precip.....100%. * Min temperature......30-40. * Max humidity.........81-96 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 7 to 10 mph. Gusts up to 25 mph in the evening. * Ridges/upr slopes...Southwest winds 7 to 12 mph with gusts to around 30 mph. * Snow level...........4500 feet. * Mixing height........1000-1100 ft AGL. * Transport winds......Southwest around 15 mph. .MONDAY... * Sky/weather..........Cloudy. Rain and snow. * Chance of precip.....100%. * Max temperature......41-51...except 34-44 ridges. * Min humidity.........77-92 percent. * 20-foot winds........ * Valleys/lwr slopes..South winds 8 to 11 mph. Gusts up to 30 mph increasing to 40 mph in the afternoon. * Ridges/upr slopes...South winds 9 to 12 mph with gusts to around 40 mph. * Snow level...........5500 feet. * Mixing height........700 ft AGL. * Transport winds......South 15 to 20 mph. .TUESDAY THROUGH WEDNESDAY...Rain and snow. Snow level 4250 feet. Lows 30 to 40. Highs 38 to 48 valleys...31 to 41 ridges. Southwest winds 7 to 14 mph. .THURSDAY...Snow and rain. Snow level 4000 feet. Lows 27 to 37. Highs 37 to 47 valleys...30 to 40 ridges. Southwest winds around 6 mph. .FRIDAY...Rain likely and slight chance of snow. Snow level 5500 feet. Lows 30 to 40. Highs 40 to 50 valleys...33 to 43 ridges. .SATURDAY...Rain and snow likely. Snow level 5500 feet. Lows 31 to 41. Highs 42 to 52 valleys...35 to 45 ridges. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ WAZ659-071200- West Slopes of the Central Cascades Generally above 1500 Feet- 330 PM PST Sat Dec 6 2025 .Tonight... * Sky/weather..........Mostly cloudy. Slight chance of rain in the evening. Slight chance of snow through the night. Rain after midnight. Patchy dense fog after midnight. * Chance of precip.....60%. * Min temperature......34-44...except 28-38 ridges. * Max humidity.........85-100 percent. * 20-foot winds........ * Valleys/lwr slopes..Downslope/downvalley around 5 mph. * Ridges/upr slopes...Southwest winds 6 to 9 mph. Gusts up to 30 mph in the evening. * Snow level...........4500 feet. * Mixing height........600-900 ft AGL. * Transport winds......Southwest around 10 mph. .SUNDAY... * Sky/weather..........Mostly cloudy. Patchy dense fog in the morning. Rain and slight chance of snow through the day. * Chance of precip.....95%. * Max temperature......41-51...except 33-43 ridges. * Min humidity.........84-99 percent...except 78-93 percent ridges. * 20-foot winds........ * Valleys/lwr slopes..South winds around 8 mph shifting to the southwest in the afternoon. Gusts up to 30 mph. * Ridges/upr slopes...South winds around 10 mph shifting to the southwest in the afternoon. Gusts up to 30 mph. * Snow level...........6000 feet. * Mixing height........600-1100 ft AGL. * Transport winds......Southwest 15 to 20 mph. .SUNDAY NIGHT... * Sky/weather..........Cloudy. Slight chance of snow in the evening. Rain through the night. Snow after midnight. * Chance of precip.....100%. * Min temperature......36-46...except 30-40 ridges. * Max humidity.........85-100 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 6 to 10 mph. Gusts up to 30 mph in the evening. * Ridges/upr slopes...Southwest winds 6 to 10 mph with gusts to around 30 mph. * Snow level...........5500 feet. * Mixing height........1000-1300 ft AGL. * Transport winds......Southwest 15 to 20 mph. .MONDAY... * Sky/weather..........Cloudy. Slight chance of snow in the morning. Rain through the day. * Chance of precip.....100%. * Max temperature......45-55...except 37-47 ridges. * Min humidity.........76-91 percent. * 20-foot winds........ * Valleys/lwr slopes..Southwest winds 9 to 12 mph with gusts to around 45 mph. * Ridges/upr slopes...Southwest winds 9 to 12 mph with gusts to around 45 mph. * Snow level...........7000 feet. * Mixing height........600-1100 ft AGL. * Transport winds......Southwest around 15 mph increasing to around 25 mph in the afternoon. .TUESDAY...Rain and snow. Snow level 5000 feet. Lows 35 to 45 valleys...in the lower 30s ridges. Highs 41 to 51 valleys...34 to 44 ridges. Southwest winds 6 to 16 mph. .WEDNESDAY...Rain and slight chance of snow. Snow level 6500 feet. Lows 34 to 44. Highs 42 to 52 valleys...in the upper 30s ridges. Southwest winds around 8 mph. .THURSDAY...Rain and slight chance of snow. Snow level 6000 feet. Lows 33 to 43. Highs 42 to 52 valleys...30 to 40 ridges. Southwest winds around 7 mph. .FRIDAY...Mostly cloudy with rain likely and slight chance of snow. Snow level 6500 feet. Lows 35 to 45. Highs 45 to 55 valleys...38 to 48 ridges. .SATURDAY...Mostly cloudy. Chance of rain and snow. Snow level 6000 feet. Lows 35 to 45. Highs 46 to 56 valleys...in the mid 40s ridges. .8 TO 14 day Outlook for Dec 14 - 20 2025 Above normal temperatures and above normal precipitation. $$ www.weather.gov/seattle