


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
427 FNUS56 KSTO 080731 FWFSTO Fire Weather Planning Forecast for Interior Northern California National Weather Service Sacramento CA 1230 AM PDT Wed Oct 8 2025 NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST DISCUSSION IS FROM THE PREVIOUS DAY. .DISCUSSION... Warmer and drier weather weather prevails today through the middle of the week. Periodically breezy north to east winds are expected through early Tuesday before lighter winds Wednesday. A pattern change late this week will bring cooler weather, breezier onshore flow, and chances for light precipitation, mainly over the mountains. CAZ213-090000- Eastern Portion of Shasta-Trinity NF- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........79-84 lower elevations...except 69-78 higher elevations. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........27-33 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south 4 to 9 mph with local gusts up to 20 mph in the afternoon. * Ridges/Upr Slopes....Southwest winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........7200 ft AGL. * Chance of thunder......6 percent. .TONIGHT... * Sky/Weather............Mostly cloudy with a slight chance of showers. * Min Temperature........51-56 lower elevations...except 42-50 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........95-100 percent. * 24 HR Trend..........43 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds up to 8 mph. * Ridges/Upr Slopes....South winds up to 8 mph. * CWR....................10 percent. * Mixing Height..........1000 ft AGL. * Chance of thunder......7 percent. .THURSDAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning. * Max Temperature........62-67 lower elevations...except 52-62 higher elevations. * Min Humidity...........68-83 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 4 to 10 mph. * Ridges/Upr Slopes....South winds 4 to 10 mph. * Mixing Height..........3300 ft AGL. * CWR....................10 percent. * Chance of thunder......3 percent. $$ CAZ214-090000- Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........74-79 lower elevations...except 68-73 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........25-30 percent. * 24 HR Trend..........5 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds up to 7 mph shifting to the southwest 6 to 12 mph with local gusts up to 25 mph in the afternoon. * Ridges/Upr Slopes....Southwest winds 4 to 10 mph. Local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........9700 ft AGL. * Chance of thunder......3 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........39-44. * 24 HR Trend..........Little change. * Max Humidity...........90-100 percent. * 24 HR Trend..........26 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 4 to 10 mph. * Ridges/Upr Slopes....South winds 4 to 10 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......4 percent. .THURSDAY... * Sky/Weather............Mostly sunny. A slight chance of showers in the morning. * Max Temperature........63-68 lower elevations...except 58-64 higher elevations. * Min Humidity...........49-64 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 5 to 10 mph with local gusts up to 20 mph in the afternoon. * Ridges/Upr Slopes....South winds 4 to 10 mph. Local gusts up to 25 mph in the afternoon. * Mixing Height..........5800 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. $$ CAZ215-090000- Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........82-87. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........28-33 percent. * 24 HR Trend..........9 percent up. * 20-Foot Winds..........North winds up to 6 mph shifting to the south 6 to 12 mph with local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........4500 ft AGL. * Chance of thunder......3 percent. .TONIGHT... * Sky/Weather............Partly cloudy with a slight chance of showers. * Min Temperature........54-59. * 24 HR Trend..........Little change. * Max Humidity...........94-99 percent. * 24 HR Trend..........40 percent up. * 20-Foot Winds..........South winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......3 percent. .THURSDAY... * Sky/Weather............Mostly cloudy until late afternoon then becoming partly cloudy. A slight chance of showers in the morning. * Max Temperature........68-73. * Min Humidity...........53-68 percent. * 20-Foot Winds..........South winds 6 to 12 mph with local gusts up to 25 mph. * Mixing Height..........4800 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. $$ CAZ216-090000- Central Sacramento Valley in Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below 1000 Ft- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........80-85. * 24 HR Trend..........6 degrees cooler. * Min Humidity...........32-44 percent. * 24 HR Trend..........16 percent up. * 20-Foot Winds..........Southeast winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........3800 ft AGL. * Chance of thunder......1 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........52-57. * 24 HR Trend..........Little change. * Max Humidity...........92-100 percent. * 24 HR Trend..........31 percent up. * 20-Foot Winds..........South winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......1 percent. .THURSDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy late in the morning then becoming mostly sunny. * Max Temperature........69-74. * Min Humidity...........50-65 percent. * 20-Foot Winds..........Southeast winds 8 to 14 mph with local gusts up to 25 mph. * Mixing Height..........4900 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ217-090000- Southern Sacramento Valley in Yolo- Sacramento Far Western Placer, southern Sutter and Solano County Below 1000 Ft- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........77-82. * 24 HR Trend..........10 degrees cooler. * Min Humidity...........43-57 percent. * 24 HR Trend..........27 percent up. * 20-Foot Winds..........Southwest winds 6 to 12 mph. Local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........3500 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Partly cloudy. * Min Temperature........55-60. * 24 HR Trend..........Little change. * Max Humidity...........89-97 percent. * 24 HR Trend..........16 percent up. * 20-Foot Winds..........South winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .THURSDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy late in the morning then becoming mostly sunny. * Max Temperature........71-76. * Min Humidity...........49-64 percent. * 20-Foot Winds..........South winds 6 to 12 mph with local gusts up to 20 mph. * Mixing Height..........5100 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ218-090000- Carquinez Strait and Delta- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Partly cloudy in the morning then clearing. * Max Temperature........73-80. * 24 HR Trend..........14 degrees cooler. * Min Humidity...........52-67 percent. * 24 HR Trend..........38 percent up. * 20-Foot Winds..........West winds 10 to 16 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........3000 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........55-60. * 24 HR Trend..........Little change. * Max Humidity...........88-93 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Southwest winds 9 to 15 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........1000 ft AGL. * Chance of thunder......0 percent. .THURSDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy late in the morning then becoming mostly sunny. * Max Temperature........70-76. * Min Humidity...........59-74 percent. * 20-Foot Winds..........South winds 6 to 12 mph with local gusts up to 20 mph. * Mixing Height..........4900 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ219-090000- Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........78-83. * 24 HR Trend..........9 degrees cooler. * Min Humidity...........44-52 percent. * 24 HR Trend..........21 percent up. * 20-Foot Winds..........West winds 6 to 12 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........4600 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........53-58. * 24 HR Trend..........Little change. * Max Humidity...........88-99 percent. * 24 HR Trend..........16 percent up. * 20-Foot Winds..........Northwest winds 4 to 10 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .THURSDAY... * Sky/Weather............Mostly sunny. * Max Temperature........72-77. * Min Humidity...........44-59 percent. * 20-Foot Winds..........East winds up to 8 mph shifting to the southwest 4 to 9 mph in the afternoon. * Mixing Height..........4500 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ263-279-090000- Southeast Edge Shasta-Trinity NF and Western Portions of Tehama- Glenn Unit-Eastern Mendocino NF- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........79-84 lower elevations...except 65-74 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........28-34 percent. * 24 HR Trend..........6 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds up to 8 mph shifting to the southeast 4 to 9 mph with local gusts up to 20 mph in the afternoon. * Ridges/Upr Slopes....Southwest winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........6000 ft AGL. * Chance of thunder......1 percent. .TONIGHT... * Sky/Weather............Partly cloudy. A slight chance of showers after midnight. * Min Temperature........51-56 lower elevations...except 42-49 higher elevations. * 24 HR Trend..........9 degrees cooler. * Max Humidity...........80-95 percent. * 24 HR Trend..........45 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 4 to 9 mph shifting to the southeast up to 8 mph after midnight. * Ridges/Upr Slopes....Southwest winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......1 percent. .THURSDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy early in the afternoon then becoming mostly cloudy. At lower elevations, a slight chance of showers in the morning. At higher elevations, a slight chance of showers. * Max Temperature........63-68 lower elevations...except 50-58 higher elevations. * Min Humidity...........59-74 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds 5 to 11 mph. * Ridges/Upr Slopes....Southeast winds 5 to 11 mph. * Mixing Height..........2700 ft AGL. * CWR....................10 percent. * Chance of thunder......1 percent. $$ CAZ266-090000- Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........75-81. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........29-35 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 6 to 12 mph. Local gusts up to 25 mph in the afternoon. * Ridges/Upr Slopes....South winds 6 to 12 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........4700 ft AGL. * Chance of thunder......3 percent. .TONIGHT... * Sky/Weather............Partly cloudy. A slight chance of showers after midnight. * Min Temperature........51-56. * 24 HR Trend..........7 degrees cooler. * Max Humidity...........83-98 percent. * 24 HR Trend..........44 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds 7 to 13 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....Southeast winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........800 ft AGL. * Chance of thunder......3 percent. .THURSDAY... * Sky/Weather............Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. * Max Temperature........63-69. * Min Humidity...........54-69 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 8 to 14 mph. * Ridges/Upr Slopes....South winds 8 to 14 mph. * Mixing Height..........4700 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. $$ CAZ220-267-090000- Southern Motherlode From 1000 to 3000 Ft. Includes portions of Toulumne-Calaveras Unit- Northern Motherlode From 1000 to 3000 Ft. Includes portions of Nevada-Yuba-Placer-Amador and Eldorado Units- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........75-80. * 24 HR Trend..........6 degrees cooler. * Min Humidity...........34-46 percent. * 24 HR Trend..........12 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds up to 8 mph. * Ridges/Upr Slopes....South winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........3800 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Partly cloudy. * Min Temperature........49-54. * 24 HR Trend..........7 degrees cooler. * Max Humidity...........87-99 percent. * 24 HR Trend..........41 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds up to 7 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....South winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .THURSDAY... * Sky/Weather............Partly cloudy early in the morning then clearing. * Max Temperature........68-73. * Min Humidity...........41-56 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 7 mph shifting to the southwest up to 8 mph in the afternoon. * Ridges/Upr Slopes....South winds up to 8 mph. * Mixing Height..........4200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ268-090000- Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest (West of Evans Peak-Grizzly Peak- Beckworth Peak)- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Sunny. * Max Temperature........67-74 lower elevations...except 61-68 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........27-36 percent. * 24 HR Trend..........4 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 6 to 12 mph. Local gusts up to 25 mph in the afternoon. * Ridges/Upr Slopes....South winds 6 to 12 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........7600 ft AGL. * Chance of thunder......2 percent. .TONIGHT... * Sky/Weather............Partly cloudy. * Min Temperature........38-47. * 24 HR Trend..........4 degrees cooler. * Max Humidity...........86-100 percent. * 24 HR Trend..........35 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 8 to 14 mph. * Ridges/Upr Slopes....South winds 8 to 14 mph. * CWR....................0 percent. * Mixing Height..........800 ft AGL. * Chance of thunder......2 percent. .THURSDAY... * Sky/Weather............Mostly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. * Max Temperature........56-62 lower elevations...except 50-58 higher elevations. * Min Humidity...........56-71 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 8 to 14 mph. Local gusts up to 25 mph in the afternoon. * Ridges/Upr Slopes....South winds 9 to 15 mph with local gusts up to 30 mph. * Mixing Height..........4500 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ221-269-090000- Stanislaus NF West of the Sierra Crest- Northern Sierra Including the Tahoe and Eldorado NF/S West of the Sierra Crest- 1230 AM PDT Wed Oct 8 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........72-78 lower elevations...except 59-69 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........27-34 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 5 to 11 mph with local gusts up to 20 mph. * Ridges/Upr Slopes....South winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........5900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........45-50 lower elevations...except 36-44 higher elevations. * 24 HR Trend..........5 degrees cooler. * Max Humidity...........72-87 percent. * 24 HR Trend..........26 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 5 to 11 mph. * Ridges/Upr Slopes....South winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .THURSDAY... * Sky/Weather............Sunny. * Max Temperature........63-69 lower elevations...except 53-63 higher elevations. * Min Humidity...........39-54 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 7 to 13 mph. * Ridges/Upr Slopes....South winds 7 to 13 mph with local gusts up to 30 mph. * Mixing Height..........4200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ .Extended... ...Shasta County Mountains and Coastal Range .THURSDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows 38 to 46. Southwest winds up to 10 mph. .FRIDAY...Mostly cloudy with a chance of showers. Highs 49 to 59. South winds 5 to 15 mph. .FRIDAY NIGHT...Mostly cloudy with a chance of showers. Lows 35 to 44. West winds up to 10 mph. .SATURDAY...Partly cloudy with a slight chance of showers. Highs 50 to 60. Northwest winds up to 10 mph. .SATURDAY NIGHT...Mostly clear. Lows 32 to 42. Northwest winds up to 10 mph. .SUNDAY...Mostly sunny. Highs 52 to 62. Northwest winds 5 to 10 mph. .SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows 34 to 43. Northwest winds 5 to 10 mph. ...Northern Sierra and Lassen Park .THURSDAY NIGHT...Mostly clear. Lows 38 to 48. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy with a chance of showers. Highs 56 to 66. South winds 5 to 15 mph. .FRIDAY NIGHT...Mostly cloudy with a chance of showers. Lows 35 to 44. South winds 5 to 15 mph. .SATURDAY...Partly cloudy with a slight chance of showers. Highs 52 to 61. Variable less than 5 mph. .SATURDAY NIGHT...Mostly clear. Lows 31 to 41. Variable less than 5 mph. .SUNDAY...Mostly sunny. Highs 55 to 64. Variable less than 5 mph. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 33 to 43. Variable less than 5 mph. ...Sierra Nevada Foothills .THURSDAY NIGHT...Mostly clear. Lows 48 to 53. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy with a chance of showers. Highs 63 to 70. South winds 5 to 15 mph. .FRIDAY NIGHT...Mostly cloudy with a chance of showers. Lows 44 to 50. Southeast winds up to 10 mph. .SATURDAY...Partly cloudy with a slight chance of showers. Highs 59 to 66. West winds up to 10 mph. .SATURDAY NIGHT...Clear. Lows 42 to 47. Variable less than 5 mph. .SUNDAY...Sunny. Highs 63 to 68. Northwest winds up to 10 mph. .SUNDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 44 to 50. Variable less than 5 mph. ...Central Valley and Delta .THURSDAY NIGHT...Mostly clear. Lows 49 to 54. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy with a chance of showers. Highs 70 to 75. Southwest winds 5 to 15 mph. .FRIDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 49 to 54. Southwest winds 5 to 15 mph. .SATURDAY...Mostly sunny. Highs 68 to 73. Northwest winds 5 to 15 mph. .SATURDAY NIGHT...Clear. Lows 47 to 52. Northwest winds up to 10 mph. .SUNDAY...Sunny. Highs 70 to 75. Northwest winds 5 to 15 mph. .SUNDAY NIGHT...Mostly clear. Lows 49 to 54. West winds 5 to 10 mph. $$