


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
366 FNUS56 KSTO 242103 FWFSTO Fire Weather Planning Forecast for Interior Northern California National Weather Service Sacramento CA 203 PM PDT Sun Aug 24 2025 ...Elevated Fire Weather Concerns From Mountain Thunderstorm Chances Through Tuesday... .DISCUSSION... Chances for isolated to scattered mountain thunderstorms in the afternoon and evening continue into the early week ahead. Primarily wet and quick moving thunderstorms expected, although lightning outside of main precipitation cores may provide additional impacts. Temperatures trend near to below normal this week as periodically breezy onshore flow resumes. Drier weather expected mid to late week. CAZ213-252115- Eastern Portion of Shasta-Trinity NF- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. At higher elevations, a slight chance of showers and thunderstorms in the evening. * Min Temperature........70-75 lower elevations...except 60-70 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........54-69 percent. * 24 HR Trend..........13 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 8 mph. * Ridges/Upr Slopes....Northeast winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......15 percent. .MONDAY... * Sky/Weather............Mostly sunny. A chance of showers and a slight chance of thunderstorms in the afternoon. * Max Temperature........99-104 lower elevations...except 88-98 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........23-29 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph. * Ridges/Upr Slopes....Northeast winds up to 8 mph shifting to the south up to 7 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........8200 ft AGL. * Chance of thunder......23 percent. .MONDAY NIGHT... * Sky/Weather............Mostly cloudy with a chance of showers and a slight chance of thunderstorms early in the evening, then mostly cloudy with a chance of showers late in the evening. Partly cloudy after midnight. * Min Temperature........66-72 lower elevations...except 58-68 higher elevations. * Max Humidity...........67-82 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds up to 8 mph. * Ridges/Upr Slopes....North winds up to 8 mph. * Mixing Height..........700 ft AGL. * CWR....................10 percent. * Chance of thunder......23 percent. .TUESDAY... * Sky/Weather............Mostly sunny in the morning, then partly cloudy with a chance of showers early in the afternoon. Mostly cloudy with a chance of showers and a slight chance of thunderstorms late in the afternoon. * Max Temperature........92-97 lower elevations...except 81-91 higher elevations. * Min Humidity...........33-48 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph. * Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the south in the afternoon. * Mixing Height..........5500 ft AGL. * CWR....................10 percent. * Chance of thunder......21 percent. $$ CAZ214-252115- Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Partly cloudy. * Min Temperature........55-60. * 24 HR Trend..........Little change. * Max Humidity...........77-87 percent lower elevations...except 66-80 percent high elevations. * 24 HR Trend..........22 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Drainage winds up to 5 mph. * Ridges/Upr Slopes....East winds up to 7 mph in the evening becoming variable up to 5 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......15 percent. .MONDAY... * Sky/Weather............Mostly sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. * Max Temperature........91-96 lower elevations...except 84-89 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........28-35 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming north up to 7 mph in the afternoon. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming northwest up to 7 mph in the afternoon. * CWR....................10 percent. * Mixing Height..........8000 ft AGL. * Chance of thunder......30 percent. .MONDAY NIGHT... * Sky/Weather............Mostly cloudy with a chance of showers and thunderstorms early in the evening, then mostly cloudy with a chance of showers late in the evening. Partly cloudy after midnight. * Min Temperature........54-60. * Max Humidity...........75-90 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds up to 7 mph in the evening becoming drainage up to 5 mph. * Ridges/Upr Slopes....Northwest winds up to 7 mph shifting to the southeast after midnight. * Mixing Height..........700 ft AGL. * CWR....................10 percent. * Chance of thunder......25 percent. .TUESDAY... * Sky/Weather............Partly cloudy in the morning, then mostly cloudy with a chance of showers early in the afternoon. Mostly cloudy with a chance of showers and a slight chance of thunderstorms late in the afternoon. * Max Temperature........84-89 lower elevations...except 78-84 higher elevations. * Min Humidity...........36-51 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph. * Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up to 7 mph in the afternoon. * Mixing Height..........8800 ft AGL. * CWR....................10 percent. * Chance of thunder......24 percent. $$ CAZ215-252115- Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........71-76. * 24 HR Trend..........Little change. * Max Humidity...........50-62 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds..........Southeast winds 4 to 9 mph shifting to the north up to 6 mph after midnight. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......7 percent. .MONDAY... * Sky/Weather............Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. * Max Temperature........101-106. * 24 HR Trend..........Little change. * Min Humidity...........22-28 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........North winds up to 6 mph shifting to the south up to 8 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........8200 ft AGL. * Chance of thunder......12 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. A chance of showers and a slight chance of thunderstorms early in the evening, then a chance of showers late in the evening. * Min Temperature........71-76. * Max Humidity...........60-75 percent. * 20-Foot Winds..........North winds 4 to 9 mph. * Mixing Height..........700 ft AGL. * CWR....................10 percent. * Chance of thunder......20 percent. .TUESDAY... * Sky/Weather............Mostly sunny in the morning, then partly cloudy with a slight chance of showers early in the afternoon. Partly cloudy with a slight chance of showers and thunderstorms late in the afternoon. * Max Temperature........94-99. * Min Humidity...........30-45 percent. * 20-Foot Winds..........North winds up to 6 mph shifting to the south up to 8 mph in the afternoon. * Mixing Height..........5700 ft AGL. * CWR....................0 percent. * Chance of thunder......18 percent. $$ CAZ216-252115- Central Sacramento Valley in Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below 1000 Ft- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Clear. Areas of smoke. * Min Temperature........65-70. * 24 HR Trend..........Little change. * Max Humidity...........58-73 percent. * 24 HR Trend..........5 percent up. * 20-Foot Winds..........Southeast winds up to 7 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......4 percent. .MONDAY... * Sky/Weather............Sunny. Areas of smoke in the morning. * Max Temperature........98-103. * 24 HR Trend..........Little change. * Min Humidity...........27-36 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Southeast winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........4500 ft AGL. * Chance of thunder......8 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. Areas of smoke in the late evening and early morning. * Min Temperature........68-73. * Max Humidity...........60-75 percent. * 20-Foot Winds..........Southeast winds up to 8 mph shifting to the northeast up to 7 mph after midnight. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......11 percent. .TUESDAY... * Sky/Weather............Partly cloudy with a slight chance of showers until late afternoon, then partly cloudy with a slight chance of showers and thunderstorms late in the afternoon. * Max Temperature........92-97. * Min Humidity...........35-50 percent. * 20-Foot Winds..........Southeast winds up to 8 mph. * Mixing Height..........4900 ft AGL. * CWR....................0 percent. * Chance of thunder......12 percent. $$ CAZ217-252115- Southern Sacramento Valley in Yolo- Sacramento Far Western Placer, southern Sutter and Solano County Below 1000 Ft- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........60-66. * 24 HR Trend..........Little change. * Max Humidity...........63-78 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........South winds 5 to 11 mph with local gusts up to 20 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......3 percent. .MONDAY... * Sky/Weather............Mostly sunny. * Max Temperature........95-100. * 24 HR Trend..........Little change. * Min Humidity...........26-31 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........South winds 5 to 11 mph. * CWR....................0 percent. * Mixing Height..........3600 ft AGL. * Chance of thunder......7 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. A slight chance of through the night. * Min Temperature........62-68. * Max Humidity...........59-74 percent. * 20-Foot Winds..........Southwest winds 5 to 11 mph. Local gusts up to 20 mph in the evening. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......9 percent. .TUESDAY... * Sky/Weather............Mostly sunny then becoming partly cloudy early in the afternoon then becoming mostly sunny. A slight chance of showers. * Max Temperature........90-95. * Min Humidity...........33-48 percent. * 20-Foot Winds..........Southwest winds 5 to 11 mph. * Mixing Height..........3700 ft AGL. * CWR....................0 percent. * Chance of thunder......8 percent. $$ CAZ218-252115- Carquinez Strait and Delta- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Clear in the evening then becoming partly cloudy. * Min Temperature........58-63. * 24 HR Trend..........Little change. * Max Humidity...........77-89 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........West winds 10 to 16 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......3 percent. .MONDAY... * Sky/Weather............Partly cloudy in the morning then clearing. * Max Temperature........85-95. * 24 HR Trend..........Little change. * Min Humidity...........32-43 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........West winds 8 to 14 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........1800 ft AGL. * Chance of thunder......5 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Min Temperature........59-64. * Max Humidity...........75-90 percent. * 20-Foot Winds..........West winds 8 to 14 mph with local gusts up to 25 mph. * Mixing Height..........600 ft AGL. * CWR....................0 percent. * Chance of thunder......6 percent. .TUESDAY... * Sky/Weather............Partly cloudy with a slight chance of showers. * Max Temperature........82-90. * Min Humidity...........56-71 percent. * 20-Foot Winds..........West winds 8 to 14 mph with local gusts up to 25 mph. * Mixing Height..........2100 ft AGL. * CWR....................0 percent. * Chance of thunder......6 percent. $$ CAZ219-252115- Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........63-68. * 24 HR Trend..........Little change. * Max Humidity...........58-73 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......5 percent. .MONDAY... * Sky/Weather............Mostly sunny. A slight chance of showers in the afternoon. * Max Temperature........95-100. * 24 HR Trend..........Little change. * Min Humidity...........28-33 percent. * 24 HR Trend..........Little change. * 20-Foot Winds..........Northwest winds 4 to 10 mph. * CWR....................0 percent. * Mixing Height..........3700 ft AGL. * Chance of thunder......8 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. A slight chance of showers early in the morning. * Min Temperature........64-70. * Max Humidity...........51-66 percent. * 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts up to 20 mph in the evening. * Mixing Height..........600 ft AGL. * CWR....................0 percent. * Chance of thunder......8 percent. .TUESDAY... * Sky/Weather............Partly cloudy with a slight chance of showers. * Max Temperature........90-95. * Min Humidity...........30-45 percent. * 20-Foot Winds..........Northwest winds 4 to 9 mph. * Mixing Height..........4200 ft AGL. * CWR....................10 percent. * Chance of thunder......7 percent. $$ CAZ263-279-252115- Southeast Edge Shasta-Trinity NF and Western Portions of Tehama- Glenn Unit-Eastern Mendocino NF- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. Areas of smoke. * Min Temperature........75-80 lower elevations...except 65-72 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........38-46 percent. * 24 HR Trend..........7 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds up to 8 mph shifting to the northwest up to 7 mph after midnight. * Ridges/Upr Slopes....Southwest winds 4 to 9 mph shifting to the north up to 7 mph after midnight. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......5 percent. .MONDAY... * Sky/Weather............Mostly sunny. Areas of smoke in the morning. A slight chance of showers and thunderstorms in the afternoon. * Max Temperature........99-104 lower elevations...except 83-93 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........24-32 percent. * 24 HR Trend..........5 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph. * Ridges/Upr Slopes....East winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........7400 ft AGL. * Chance of thunder......17 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. A chance of showers and a slight chance of thunderstorms early in the evening, then a chance of showers late in the evening. * Min Temperature........72-77 lower elevations...except 65-71 higher elevations. * Max Humidity...........45-60 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds up to 8 mph. * Ridges/Upr Slopes....Northwest winds up to 8 mph. * Mixing Height..........600 ft AGL. * CWR....................10 percent. * Chance of thunder......20 percent. .TUESDAY... * Sky/Weather............Mostly sunny in the morning, then mostly cloudy with a chance of showers early in the afternoon. Mostly cloudy with a chance of showers and a slight chance of thunderstorms late in the afternoon. * Max Temperature........92-97 lower elevations...except 76-86 higher elevations. * Min Humidity...........34-49 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast up to 8 mph in the afternoon. * Ridges/Upr Slopes....Northwest winds up to 7 mph shifting to the southeast up to 8 mph in the afternoon. * Mixing Height..........5600 ft AGL. * CWR....................10 percent. * Chance of thunder......20 percent. $$ CAZ266-252115- Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........70-75. * 24 HR Trend..........Little change. * Max Humidity...........46-56 percent. * 24 HR Trend..........8 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph. * Ridges/Upr Slopes....East winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......8 percent. .MONDAY... * Sky/Weather............Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. * Max Temperature........95-100 lower elevations...except 90-97 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........26-34 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds up to 8 mph shifting to the southwest in the afternoon. * Ridges/Upr Slopes....North winds up to 8 mph shifting to the southwest up to 7 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........7500 ft AGL. * Chance of thunder......16 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. A slight chance of showers and thunderstorms early in the evening, then a slight chance of showers late in the evening. * Min Temperature........68-74. * Max Humidity...........57-72 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph. * Ridges/Upr Slopes....East winds up to 8 mph. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......20 percent. .TUESDAY... * Sky/Weather............Partly cloudy in the morning, then mostly cloudy with a chance of showers early in the afternoon. Mostly cloudy with a chance of showers and a slight chance of thunderstorms late in the afternoon. * Max Temperature........89-94 lower elevations...except 84-90 higher elevations. * Min Humidity...........38-53 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph shifting to the southwest in the afternoon. * Ridges/Upr Slopes....East winds up to 7 mph shifting to the southwest in the afternoon. * Mixing Height..........6200 ft AGL. * CWR....................10 percent. * Chance of thunder......16 percent. $$ CAZ220-267-252115- 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- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........67-73. * 24 HR Trend..........Little change. * Max Humidity...........52-62 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...West winds up to 7 mph shifting to the northeast after midnight. * Ridges/Upr Slopes....Northeast winds up to 8 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......8 percent. .MONDAY... * Sky/Weather............Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. * Max Temperature........92-97. * 24 HR Trend..........Little change. * Min Humidity...........27-32 percent. * 24 HR Trend..........Little change. * 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. * CWR....................0 percent. * Mixing Height..........6200 ft AGL. * Chance of thunder......16 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy with a slight chance of showers. * Min Temperature........67-72. * Max Humidity...........60-75 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...West winds up to 8 mph shifting to the east up to 7 mph after midnight. * Ridges/Upr Slopes....West winds up to 8 mph shifting to the northeast up to 7 mph after midnight. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......13 percent. .TUESDAY... * Sky/Weather............Mostly cloudy. A chance of showers until late afternoon, then a chance of showers and a slight chance of thunderstorms late in the afternoon. * Max Temperature........87-92. * Min Humidity...........29-44 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..........6000 ft AGL. * CWR....................10 percent. * Chance of thunder......14 percent. $$ CAZ268-252115- Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest (West of Evans Peak-Grizzly Peak- Beckworth Peak)- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........55-65. * 24 HR Trend..........Little change. * Max Humidity...........56-71 percent...except 82-97 percent in the high mountain valleys. * 24 HR Trend..........11 percent up. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 4 to 9 mph. * Ridges/Upr Slopes....Northeast winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........300 ft AGL. * Chance of thunder......11 percent. .MONDAY... * Sky/Weather............Mostly sunny in the morning, then partly cloudy with a chance of showers and a slight chance of thunderstorms in the afternoon. * Max Temperature........84-90 lower elevations...except 76-84 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........30-40 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 4 to 10 mph shifting to the west up to 7 mph in the afternoon. * Ridges/Upr Slopes....East winds 4 to 9 mph shifting to the west up to 7 mph in the afternoon. * CWR....................10 percent. * Mixing Height..........7300 ft AGL. * Chance of thunder......27 percent. .MONDAY NIGHT... * Sky/Weather............Mostly cloudy with a chance of showers and thunderstorms early in the evening, then mostly cloudy with a chance of showers late in the evening. Partly cloudy after midnight. * Min Temperature........54-64. * Max Humidity...........66-81 percent...except 78-93 percent in the high mountain valleys. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 8 mph. * Ridges/Upr Slopes....Northeast winds up to 8 mph. * Mixing Height..........300 ft AGL. * CWR....................10 percent. * Chance of thunder......24 percent. .TUESDAY... * Sky/Weather............Partly cloudy early in the morning then becoming mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. A slight chance of thunderstorms late in the afternoon. * Max Temperature........77-83 lower elevations...except 69-77 higher elevations. * Min Humidity...........45-60 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the southwest in the afternoon. * Ridges/Upr Slopes....Northeast winds up to 8 mph shifting to the west in the afternoon. * Mixing Height..........7200 ft AGL. * CWR....................20 percent. * Chance of thunder......21 percent. $$ CAZ221-269-252115- Stanislaus NF West of the Sierra Crest- Northern Sierra Including the Tahoe and Eldorado NF/S West of the Sierra Crest- 203 PM PDT Sun Aug 24 2025 .TONIGHT... * Sky/Weather............Mostly clear. At higher elevations, a slight chance of showers and thunderstorms in the evening. * Min Temperature........63-72 lower elevations...except 52-62 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........51-66 percent lower elevations...except 65-80 percent high elevations. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 4 to 9 mph. * Ridges/Upr Slopes....Northeast winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........400 ft AGL. * Chance of thunder......20 percent. .MONDAY... * Sky/Weather............Mostly sunny in the morning then becoming mostly cloudy. At higher elevations, a slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. At lower elevations, a chance of showers and a slight chance of thunderstorms in the afternoon. * Max Temperature........88-93 lower elevations...except 73-83 higher elevations. * 24 HR Trend..........Little change. * Min Humidity...........31-43 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southeast winds up to 7 mph shifting to the west in the afternoon. * Ridges/Upr Slopes....Southwest winds up to 8 mph. * CWR....................10 percent. * Mixing Height..........7800 ft AGL. * Chance of thunder......28 percent. .MONDAY NIGHT... * Sky/Weather............Mostly cloudy then becoming partly cloudy after midnight then becoming mostly cloudy. A slight chance of thunderstorms early in the evening. A chance of showers in the evening, then a slight chance of showers after midnight. * Min Temperature........62-70 lower elevations...except 50-60 higher elevations. * Max Humidity...........66-81 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 4 to 9 mph. * Ridges/Upr Slopes....Northeast winds 4 to 9 mph. * Mixing Height..........400 ft AGL. * CWR....................10 percent. * Chance of thunder......19 percent. .TUESDAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers likely and a chance of thunderstorms in the afternoon. * Max Temperature........81-87 lower elevations...except 66-76 higher elevations. * 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....East winds up to 8 mph shifting to the west in the afternoon. * Mixing Height..........7500 ft AGL. * CWR....................20 percent. * Chance of thunder......25 percent. $$ .Extended... ...Shasta County Mountains and Coastal Range .TUESDAY NIGHT...Mostly cloudy with a chance of showers. Lows 57 to 67. Northwest winds up to 10 mph. .WEDNESDAY...Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs 76 to 86. Southeast winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 53 to 63. West winds up to 10 mph. .THURSDAY...Mostly sunny. Highs 76 to 86. South winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 52 to 62. Variable less than 5 mph. .FRIDAY...Mostly sunny. Highs 75 to 84. South winds up to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows 51 to 61. West winds up to 10 mph. ...Northern Sierra and Lassen Park .TUESDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 54 to 64. East winds up to 10 mph. .WEDNESDAY...Partly cloudy with a slight chance of showers and thunderstorms. Highs 77 to 86. South winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 52 to 62. East winds up to 10 mph. .THURSDAY...Sunny. Highs 77 to 87. South winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 60. Variable less than 5 mph. .FRIDAY...Mostly sunny. Highs 76 to 86. South winds up to 10 mph. .FRIDAY NIGHT...Clear. Lows 50 to 60. Variable less than 5 mph. ...Sierra Nevada Foothills .TUESDAY NIGHT...Partly cloudy with a slight chance of showers. Lows 63 to 69. East winds up to 10 mph. .WEDNESDAY...Partly cloudy with a slight chance of showers. Highs 85 to 91. South winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 61 to 67. East winds up to 10 mph. .THURSDAY...Sunny. Highs 86 to 91. Southwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 61 to 66. Variable less than 5 mph. .FRIDAY...Mostly sunny. Highs 84 to 89. Variable less than 5 mph. .FRIDAY NIGHT...Clear. Lows 60 to 65. Variable less than 5 mph. ...Central Valley and Delta .TUESDAY NIGHT...Mostly clear. Lows 60 to 66. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly sunny. Highs 90 to 95. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 58 to 63. Southwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 91 to 96. Southwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 57 to 62. Southwest winds up to 10 mph. .FRIDAY...Mostly sunny. Highs 89 to 94. Southwest winds up to 10 mph. .FRIDAY NIGHT...Clear. Lows 58 to 63. Southwest winds up to 10 mph. $$