


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
770 FNUS56 KSTO 060731 FWFSTO Fire Weather Planning Forecast for Interior Northern California National Weather Service Sacramento CA 1230 AM PDT Sat Sep 6 2025 NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST DISCUSSION IS FROM THE PREVIOUS DAY. .DISCUSSION...Cooler weather with increased moisture expected over the next several days with a slight chance of showers and thunderstorms over the Coastal Range on Saturday. A pattern change is forecasted for late weekend into early next week bringing chances for wetting rains, breezy winds, and below normal temperatures. CAZ213-070000- Eastern Portion of Shasta-Trinity NF- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. At higher elevations, a slight chance of showers in the afternoon. * Max Temperature........84-89 lower elevations...except 74-84 higher elevations. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........27-37 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south 5 to 10 mph in the afternoon. * Ridges/Upr Slopes....Southwest winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........5700 ft AGL. * Chance of thunder......1 percent. .TONIGHT... * Sky/Weather............Mostly clear. At higher elevations, a slight chance of showers and thunderstorms in the evening. * Min Temperature........57-62 lower elevations...except 47-57 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........69-84 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds up to 7 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....Southwest winds up to 8 mph with local gusts up to 20 mph in the evening becoming variable up to 5 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......1 percent. .SUNDAY... * Sky/Weather............Mostly sunny until late afternoon then becoming mostly cloudy. * Max Temperature........80-85 lower elevations...except 70-80 higher elevations. * Min Humidity...........34-49 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up to 8 mph in the afternoon. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming south 4 to 9 mph in the afternoon. * Mixing Height..........5200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ214-070000- Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........81-86 lower elevations...except 75-81 higher elevations. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........26-31 percent. * 24 HR Trend..........4 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 5 to 11 mph with local gusts up to 25 mph in the afternoon. * Ridges/Upr Slopes....Southwest winds 4 to 10 mph. Local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........8400 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........45-50. * 24 HR Trend..........Little change. * Max Humidity...........78-88 percent lower elevations...except 65-80 percent high elevations. * 24 HR Trend..........7 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...West winds 4 to 9 mph with local gusts up to 20 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....Southwest winds 4 to 10 mph with local gusts up to 20 mph in the evening becoming variable up to 5 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny until late afternoon then becoming partly cloudy. * Max Temperature........76-81 lower elevations...except 70-76 higher elevations. * Min Humidity...........31-39 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to 9 mph with local gusts up to 20 mph in the afternoon. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 4 to 9 mph with local gusts up to 20 mph in the afternoon. * Mixing Height..........6900 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ215-070000- Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........87-92. * 24 HR Trend..........Little change. * Min Humidity...........29-39 percent. * 24 HR Trend..........6 percent up. * 20-Foot Winds..........Southeast winds 4 to 10 mph. Local gusts up to 25 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........5100 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........59-64. * 24 HR Trend..........Little change. * Max Humidity...........72-87 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........South winds 4 to 9 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny until late afternoon then becoming partly cloudy. * Max Temperature........84-89. * Min Humidity...........30-45 percent. * 20-Foot Winds..........Northeast winds up to 6 mph shifting to the south 4 to 9 mph in the afternoon. * Mixing Height..........4900 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ216-070000- Central Sacramento Valley in Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below 1000 Ft- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........85-90. * 24 HR Trend..........Little change. * Min Humidity...........35-49 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Southeast winds 5 to 11 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........3900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Clear. * Min Temperature........57-62. * 24 HR Trend..........Little change. * Max Humidity...........82-97 percent. * 24 HR Trend..........4 percent down. * 20-Foot Winds..........Southeast winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........83-88. * Min Humidity...........40-55 percent. * 20-Foot Winds..........Southeast winds up to 8 mph. * Mixing Height..........4200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ217-070000- Southern Sacramento Valley in Yolo- Sacramento Far Western Placer, southern Sutter and Solano County Below 1000 Ft- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........84-89. * 24 HR Trend..........Little change. * Min Humidity...........33-40 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........South winds 6 to 12 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........3800 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........57-62. * 24 HR Trend..........Little change. * Max Humidity...........82-95 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........South winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........84-89. * Min Humidity...........36-51 percent. * 20-Foot Winds..........South winds 4 to 9 mph. * Mixing Height..........4500 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ218-070000- Carquinez Strait and Delta- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Partly cloudy in the morning then clearing. * Max Temperature........80-86. * 24 HR Trend..........Little change. * Min Humidity...........38-49 percent. * 24 HR Trend..........4 percent down. * 20-Foot Winds..........West winds 10 to 16 mph with local gusts up to 30 mph. * CWR....................0 percent. * Mixing Height..........2700 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........59-64. * 24 HR Trend..........Little change. * Max Humidity...........88-93 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Southwest winds 8 to 14 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........79-87. * Min Humidity...........54-69 percent. * 20-Foot Winds..........Southwest winds 6 to 12 mph with local gusts up to 25 mph. * Mixing Height..........3700 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ219-070000- Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........85-90. * 24 HR Trend..........Little change. * Min Humidity...........30-38 percent. * 24 HR Trend..........5 percent down. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........4200 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........59-64. * 24 HR Trend..........Little change. * Max Humidity...........80-95 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........84-89. * Min Humidity...........34-49 percent. * 20-Foot Winds..........Northwest winds 4 to 10 mph. * Mixing Height..........4600 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ263-279-070000- Southeast Edge Shasta-Trinity NF and Western Portions of Tehama- Glenn Unit-Eastern Mendocino NF- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........84-89 lower elevations...except 69-79 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........36-46 percent. * 24 HR Trend..........10 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds 4 to 9 mph. * Ridges/Upr Slopes....Southeast winds 4 to 10 mph. * CWR....................0 percent. * Mixing Height..........5600 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........60-65 lower elevations...except 51-58 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........61-72 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds 4 to 9 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....West winds 4 to 9 mph. Local gusts up to 20 mph in the evening. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny until late afternoon then becoming partly cloudy. * Max Temperature........80-85 lower elevations...except 65-75 higher elevations. * Min Humidity...........42-57 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast 4 to 9 mph in the afternoon. * Ridges/Upr Slopes....Northwest winds up to 7 mph shifting to the southeast 4 to 9 mph in the afternoon. * Mixing Height..........4800 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ266-070000- Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........80-86. * 24 HR Trend..........Little change. * Min Humidity...........29-36 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 5 to 11 mph. Local gusts up to 25 mph in the afternoon. * Ridges/Upr Slopes....South winds 5 to 11 mph. Local gusts up to 20 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........5300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........57-63. * 24 HR Trend..........Little change. * Max Humidity...........56-71 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds 4 to 10 mph. * Ridges/Upr Slopes....East winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny until late afternoon then becoming partly cloudy. * Max Temperature........79-84 lower elevations...except 74-80 higher elevations. * Min Humidity...........36-51 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 4 to 10 mph shifting to the southwest 4 to 9 mph with local gusts up to 20 mph in the afternoon. * Ridges/Upr Slopes....East winds up to 8 mph shifting to the southwest in the afternoon. * Mixing Height..........5200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ220-267-070000- Southern Motherlode From 1000 to 3000 Ft. Includes portions of Toulumne-Calaveras Unit- Northern Motherlode From 1000 to 3000 Ft. Includes portions of Nevada-Yuba-Placer-Amador and Eldorado Units- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........82-87. * 24 HR Trend..........Little change. * Min Humidity...........31-37 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds up to 8 mph. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming southwest up to 8 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........4900 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........57-62. * 24 HR Trend..........Little change. * Max Humidity...........62-76 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds up to 8 mph shifting to the east up to 7 mph after midnight. * Ridges/Upr Slopes....South winds up to 7 mph in the evening becoming variable up to 5 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........79-85. * Min Humidity...........28-43 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest up to 8 mph in the afternoon. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming southwest up to 8 mph in the afternoon. * Mixing Height..........5000 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ268-070000- 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 Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........73-80 lower elevations...except 67-74 higher elevations. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........23-36 percent. * 24 HR Trend..........5 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 5 to 11 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....South winds 5 to 11 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........6300 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........43-53. * 24 HR Trend..........Little change. * Max Humidity...........62-77 percent...except 83-95 percent in the high mountain valleys. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds 4 to 9 mph. * Ridges/Upr Slopes....Southeast winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny until late afternoon then becoming partly cloudy. * Max Temperature........69-75 lower elevations...except 62-70 higher elevations. * Min Humidity...........33-48 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 4 to 10 mph shifting to the southwest 5 to 11 mph in the afternoon. * Ridges/Upr Slopes....South winds 5 to 11 mph. * Mixing Height..........5200 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ CAZ221-269-070000- Stanislaus NF West of the Sierra Crest- Northern Sierra Including the Tahoe and Eldorado NF/S West of the Sierra Crest- 1230 AM PDT Sat Sep 6 2025 .TODAY... * Sky/Weather............Mostly sunny. * Max Temperature........78-84 lower elevations...except 65-75 higher elevations. * 24 HR Trend..........4 degrees cooler. * Min Humidity...........30-39 percent. * 24 HR Trend..........10 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 6 to 12 mph. * Ridges/Upr Slopes....Southwest winds 6 to 12 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........5700 ft AGL. * Chance of thunder......0 percent. .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........53-60 lower elevations...except 42-52 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........60-75 percent. * 24 HR Trend..........10 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds up to 8 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....South winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........300 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........74-80 lower elevations...except 62-72 higher elevations. * Min Humidity...........35-50 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 5 to 11 mph. * Ridges/Upr Slopes....Southwest winds 5 to 11 mph. * Mixing Height..........5100 ft AGL. * CWR....................0 percent. * Chance of thunder......0 percent. $$ .Extended... ...Shasta County Mountains and Coastal Range .SUNDAY NIGHT...Partly cloudy. Lows 47 to 57. West winds up to 10 mph. .MONDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs 63 to 73. Southwest winds 5 to 15 mph. .MONDAY NIGHT...Mostly cloudy with a chance of showers. Lows 46 to 56. West winds 5 to 15 mph. .TUESDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs 63 to 73. Variable less than 5 mph. .TUESDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows 46 to 56. Variable less than 5 mph. .WEDNESDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs 66 to 76. Variable less than 5 mph. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows 46 to 56. Variable less than 5 mph. ...Northern Sierra and Lassen Park .SUNDAY NIGHT...Mostly clear. Lows 46 to 56. Southeast winds up to 10 mph. .MONDAY...Partly cloudy with a slight chance of showers. Highs 66 to 76. South winds 5 to 15 mph. .MONDAY NIGHT...Partly cloudy with a chance of showers. Lows 44 to 54. South winds up to 10 mph. .TUESDAY...Partly cloudy with a slight chance of showers. Highs 64 to 73. Variable less than 5 mph. .TUESDAY NIGHT...Mostly cloudy with a slight chance of showers. Lows 43 to 53. Variable less than 5 mph. .WEDNESDAY...Mostly cloudy with a chance of showers and a slight chance of thunderstorms. Highs 66 to 75. Variable less than 5 mph. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows 43 to 53. Variable less than 5 mph. ...Sierra Nevada Foothills .SUNDAY NIGHT...Mostly clear. Lows 56 to 61. East winds 5 to 15 mph. .MONDAY...Partly cloudy with a chance of showers. Highs 75 to 81. South winds 5 to 15 mph. .MONDAY NIGHT...Partly cloudy with a chance of showers. Lows 54 to 60. Southeast winds up to 10 mph. .TUESDAY...Partly cloudy with a slight chance of showers. Highs 73 to 78. Variable less than 5 mph. .TUESDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 54 to 59. Variable less than 5 mph. .WEDNESDAY...Partly cloudy with a chance of showers. Highs 74 to 79. Variable less than 5 mph. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows 54 to 59. Variable less than 5 mph. ...Central Valley and Delta .SUNDAY NIGHT...Mostly clear. Lows 58 to 63. Southwest winds 5 to 15 mph. .MONDAY...Partly cloudy with a slight chance of showers. Highs 81 to 86. Southwest winds 10 to 20 mph. .MONDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 58 to 63. Southwest winds 5 to 15 mph. .TUESDAY...Partly cloudy with a slight chance of showers. Highs 80 to 85. West winds up to 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows 57 to 62. Southwest winds up to 10 mph. .WEDNESDAY...Partly cloudy with a slight chance of showers. Highs 81 to 86. Southwest winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 57 to 62. Southwest winds up to 10 mph. $$