


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
651 FNUS56 KSTO 112015 FWFSTO Fire Weather Planning Forecast for Interior Northern California National Weather Service Sacramento CA 115 PM PDT Sat Oct 11 2025 .DISCUSSION... Lingering mountain showers north of I-80 through this afternoon. Otherwise, dry weather is expected this weekend with locally breezy north to east winds on Sunday. A cold, wet system brings widespread rain, mountain snow, breezy south winds, and thunderstorm chances Monday through Wednesday. Highest snowfall amounts expected south of Highway 50, with snow levels above 6000 feet. CAZ213-122015- Eastern Portion of Shasta-Trinity NF- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........41-47 lower elevations...except 31-41 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........80-95 percent. * 24 HR Trend..........12 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Drainage winds up to 5 mph becoming north up to 8 mph after midnight. * Ridges/Upr Slopes....North winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......1 percent. .SUNDAY... * Sky/Weather............Mostly sunny in the morning then becoming mostly cloudy. * Max Temperature........67-72 lower elevations...except 56-65 higher elevations. * 24 HR Trend..........5 degrees warmer. * Min Humidity...........34-44 percent. * 24 HR Trend..........17 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds 4 to 9 mph. * Ridges/Upr Slopes....North winds 4 to 9 mph. * CWR....................0 percent. * Mixing Height..........3700 ft AGL. * Chance of thunder......1 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. A chance of rain showers after midnight. * Min Temperature........43-48 lower elevations...except 34-42 higher elevations. * Max Humidity...........79-94 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 4 to 10 mph. * Mixing Height..........700 ft AGL. * CWR....................0 percent. * Chance of thunder......3 percent. .COLUMBUS DAY... * Sky/Weather............Rain showers. * Max Temperature........51-56 lower elevations...except 41-49 higher elevations. * Min Humidity...........77-92 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up to 7 mph in the afternoon. * Ridges/Upr Slopes....South winds up to 8 mph. * Mixing Height..........1700 ft AGL. * CWR....................60 percent. * Chance of thunder......9 percent. $$ CAZ214-122015- Burney Basin and Northeast Plateau in Shasta County Including Northwest Lassen NF north of Lassen NP- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........27-32. * 24 HR Trend..........4 degrees cooler. * Max Humidity...........95-100 percent. * 24 HR Trend..........Little change. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Drainage winds up to 5 mph. * Ridges/Upr Slopes....Variable winds up to 5 mph. * CWR....................0 percent. * Mixing Height..........700 ft AGL. * Chance of thunder......1 percent. .SUNDAY... * Sky/Weather............Mostly sunny in the morning then becoming partly cloudy. * Max Temperature........56-61. * 24 HR Trend..........6 degrees warmer. * Min Humidity...........34-39 percent. * 24 HR Trend..........20 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Upslope winds up to 5 mph. * Ridges/Upr Slopes....East winds up to 7 mph in the morning becoming variable up to 5 mph. * CWR....................0 percent. * Mixing Height..........4400 ft AGL. * Chance of thunder......1 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. At lower elevations, a chance of showers after midnight. At higher elevations, a chance of showers and snow showers after midnight. * Min Temperature........33-38. * Max Humidity...........83-98 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Drainage winds up to 5 mph. * Ridges/Upr Slopes....Variable winds up to 5 mph. * Mixing Height..........900 ft AGL. * CWR....................0 percent. * Chance of thunder......2 percent. .COLUMBUS DAY... * Sky/Weather............At lower elevations, showers. At higher elevations, showers and snow showers likely in the morning, then showers in the afternoon. * Max Temperature........48-53 lower elevations...except 43-48 higher elevations. * Min Humidity...........79-94 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds up to 8 mph. * Ridges/Upr Slopes....Southwest winds up to 8 mph. * Mixing Height..........2800 ft AGL. * CWR....................40 percent. * Chance of thunder......9 percent. $$ CAZ215-122015- Northern Sacramento Valley to Southern Tehama County Line Below 1000 Ft- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........44-49. * 24 HR Trend..........Little change. * Max Humidity...........74-85 percent. * 24 HR Trend..........19 percent down. * 20-Foot Winds..........Northwest winds up to 8 mph. Local gusts up to 20 mph after midnight. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........71-76. * 24 HR Trend..........5 degrees warmer. * Min Humidity...........28-33 percent. * 24 HR Trend..........13 percent down. * 20-Foot Winds..........North winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........3900 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. A slight chance of showers after midnight. * Min Temperature........46-51. * Max Humidity...........76-91 percent. * 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts up to 20 mph in the evening. * Mixing Height..........800 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers in the afternoon. * Max Temperature........57-62. * Min Humidity...........70-85 percent. * 20-Foot Winds..........South winds 6 to 12 mph. Local gusts up to 25 mph in the afternoon. * Mixing Height..........2900 ft AGL. * CWR....................50 percent. * Chance of thunder......11 percent. $$ CAZ216-122015- Central Sacramento Valley in Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below 1000 Ft- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........46-51. * 24 HR Trend..........Little change. * Max Humidity...........71-86 percent. * 24 HR Trend..........20 percent down. * 20-Foot Winds..........North winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........73-78. * 24 HR Trend..........5 degrees warmer. * Min Humidity...........28-33 percent. * 24 HR Trend..........12 percent down. * 20-Foot Winds..........Northwest winds 7 to 13 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........4100 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. * Min Temperature........48-53. * Max Humidity...........73-88 percent. * 20-Foot Winds..........North winds 5 to 11 mph. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers in the afternoon. * Max Temperature........59-64. * Min Humidity...........68-83 percent. * 20-Foot Winds..........South winds 7 to 13 mph with local gusts up to 25 mph. * Mixing Height..........3900 ft AGL. * CWR....................50 percent. * Chance of thunder......10 percent. $$ CAZ217-122015- Southern Sacramento Valley in Yolo- Sacramento Far Western Placer, southern Sutter and Solano County Below 1000 Ft- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........46-52. * 24 HR Trend..........Little change. * Max Humidity...........64-76 percent. * 24 HR Trend..........27 percent down. * 20-Foot Winds..........North winds 6 to 12 mph. Local gusts up to 30 mph after midnight. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........74-79. * 24 HR Trend..........5 degrees warmer. * Min Humidity...........26-31 percent. * 24 HR Trend..........10 percent down. * 20-Foot Winds..........Northwest winds 8 to 14 mph. Local gusts up to 30 mph decreasing to 20 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........4600 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly clear in the evening then becoming mostly cloudy. * Min Temperature........51-56. * Max Humidity...........69-84 percent. * 20-Foot Winds..........Southwest winds 5 to 11 mph. Local gusts up to 20 mph after midnight. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers in the afternoon. * Max Temperature........62-67. * Min Humidity...........63-78 percent. * 20-Foot Winds..........South winds 10 to 16 mph. * Mixing Height..........4200 ft AGL. * CWR....................40 percent. * Chance of thunder......11 percent. $$ CAZ218-122015- Carquinez Strait and Delta- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........49-54. * 24 HR Trend..........Little change. * Max Humidity...........72-79 percent. * 24 HR Trend..........21 percent down. * 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts up to 30 mph after midnight. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........74-79. * 24 HR Trend..........Little change. * Min Humidity...........32-37 percent. * 24 HR Trend..........7 percent down. * 20-Foot Winds..........Northwest winds 8 to 14 mph. Local gusts up to 30 mph in the morning. * CWR....................0 percent. * Mixing Height..........4600 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly clear until early morning then becoming mostly cloudy. * Min Temperature........53-58. * Max Humidity...........77-92 percent. * 20-Foot Winds..........Southwest winds 8 to 14 mph. Local gusts up to 20 mph increasing to 30 mph after midnight. * Mixing Height..........700 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers in the afternoon. A slight chance of thunderstorms late in the afternoon. * Max Temperature........62-67. * Min Humidity...........70-85 percent. * 20-Foot Winds..........Southwest winds 12 to 18 mph with local gusts up to 35 mph. * Mixing Height..........4100 ft AGL. * CWR....................40 percent. * Chance of thunder......14 percent. $$ CAZ219-122015- Northern San Joaquin Valley in San Joaquin and Stanislaus Counties Below 1000 ft- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........46-53. * 24 HR Trend..........Little change. * Max Humidity...........66-81 percent. * 24 HR Trend..........21 percent down. * 20-Foot Winds..........Northwest winds 9 to 15 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........72-77. * 24 HR Trend..........Little change. * Min Humidity...........28-33 percent. * 24 HR Trend..........8 percent down. * 20-Foot Winds..........Northwest winds 10 to 16 mph with local gusts up to 25 mph. * CWR....................0 percent. * Mixing Height..........4300 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly clear until early morning then becoming mostly cloudy. * Min Temperature........50-55. * Max Humidity...........74-89 percent. * 20-Foot Winds..........West winds 8 to 14 mph. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. * Max Temperature........62-67. * Min Humidity...........58-73 percent. * 20-Foot Winds..........South winds 11 to 17 mph. * Mixing Height..........4100 ft AGL. * CWR....................30 percent. * Chance of thunder......7 percent. $$ CAZ263-279-122015- Southeast Edge Shasta-Trinity NF and Western Portions of Tehama- Glenn Unit-Eastern Mendocino NF- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........47-52 lower elevations...except 37-44 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........65-80 percent. * 24 HR Trend..........13 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 6 to 12 mph. * Ridges/Upr Slopes....Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........600 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........69-74 lower elevations...except 54-64 higher elevations. * 24 HR Trend..........6 degrees warmer. * Min Humidity...........30-40 percent. * 24 HR Trend..........18 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 6 to 12 mph. * Ridges/Upr Slopes....Northwest winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........3500 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. A slight chance of showers after midnight. * Min Temperature........47-52 lower elevations...except 37-43 higher elevations. * Max Humidity...........75-90 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...West winds 7 to 13 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....West winds 7 to 13 mph. * Mixing Height..........800 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............At lower elevations, showers. At higher elevations, a chance of showers and snow showers likely in the morning, then showers in the afternoon. * Max Temperature........53-58 lower elevations...except 39-47 higher elevations. * Min Humidity...........71-86 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds up to 8 mph shifting to the southeast 6 to 11 mph in the afternoon. * Ridges/Upr Slopes....West winds 5 to 11 mph shifting to the south 6 to 12 mph in the afternoon. * Mixing Height..........2400 ft AGL. * CWR....................60 percent. * Chance of thunder......12 percent. $$ CAZ266-122015- Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions of Shasta-Trinity and Butte Units- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........42-49. * 24 HR Trend..........Little change. * Max Humidity...........63-78 percent. * 24 HR Trend..........29 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 5 to 11 mph. * Ridges/Upr Slopes....Variable winds up to 5 mph becoming northeast 6 to 12 mph after midnight. * CWR....................0 percent. * Mixing Height..........500 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........64-70. * 24 HR Trend..........6 degrees warmer. * Min Humidity...........32-38 percent. * 24 HR Trend..........13 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds 7 to 13 mph. * Ridges/Upr Slopes....Northwest winds 7 to 13 mph. * CWR....................0 percent. * Mixing Height..........3500 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. A slight chance of showers after midnight. * Min Temperature........44-50. * Max Humidity...........77-92 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds up to 8 mph shifting to the east up to 7 mph after midnight. * Ridges/Upr Slopes....Northwest winds up to 7 mph in the evening becoming variable up to 5 mph. * Mixing Height..........600 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Rain showers. * Max Temperature........53-58 lower elevations...except 48-53 higher elevations. * Min Humidity...........77-92 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 9 to 15 mph. * Ridges/Upr Slopes....South winds 8 to 14 mph. * Mixing Height..........3300 ft AGL. * CWR....................50 percent. * Chance of thunder......10 percent. $$ CAZ220-267-122015- 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- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Clear. * Min Temperature........43-48. * 24 HR Trend..........Little change. * Max Humidity...........57-70 percent. * 24 HR Trend..........36 percent down. * 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......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........66-71. * 24 HR Trend..........5 degrees warmer. * Min Humidity...........29-34 percent. * 24 HR Trend..........11 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...North winds up to 8 mph shifting to the west up to 7 mph in the afternoon. * Ridges/Upr Slopes....East winds 5 to 11 mph shifting to the west up to 7 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........3800 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly clear until early morning then becoming mostly cloudy. * Min Temperature........44-50. * Max Humidity...........73-88 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds up to 8 mph. * Ridges/Upr Slopes....Southeast winds up to 7 mph in the evening becoming variable up to 5 mph. * Mixing Height..........500 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. * Max Temperature........53-59. * Min Humidity...........66-81 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 5 to 11 mph. * Ridges/Upr Slopes....South winds 5 to 11 mph. * Mixing Height..........3400 ft AGL. * CWR....................30 percent. * Chance of thunder......6 percent. $$ CAZ268-122015- Northern Sierra Including Lassen NP and Plumas and Lassen NF/S West of the Sierra Crest (West of Evans Peak-Grizzly Peak- Beckworth Peak)- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........29-39 lower elevations...except 26-34 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........78-93 percent...except 95-100 percent in the high mountain valleys. * 24 HR Trend..........11 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northwest winds up to 8 mph shifting to the northeast 6 to 12 mph after midnight. * Ridges/Upr Slopes....North winds 4 to 10 mph. * CWR....................0 percent. * Mixing Height..........300 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Mostly sunny. * Max Temperature........58-64 lower elevations...except 51-58 higher elevations. * 24 HR Trend..........9 degrees warmer. * Min Humidity...........27-40 percent. * 24 HR Trend..........20 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 7 to 13 mph shifting to the west up to 8 mph in the afternoon. * Ridges/Upr Slopes....Northeast winds 7 to 13 mph shifting to the west up to 8 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........3900 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly cloudy. At lower elevations, a chance of showers after midnight. At higher elevations, a chance of showers and snow showers after midnight. * Min Temperature........32-40. * Max Humidity...........80-95 percent...except 91-100 percent in the high mountain valleys. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Southwest winds 5 to 11 mph. * Ridges/Upr Slopes....Southwest winds 5 to 11 mph. * Mixing Height..........800 ft AGL. * CWR....................10 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Showers at lower elevations....and showers and snow showers at higher elevations. Snow level 5500 feet in the morning. * Max Temperature........41-47 lower elevations...except 35-41 higher elevations. * Min Humidity...........75-90 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 8 to 14 mph with local gusts up to 25 mph. * Ridges/Upr Slopes....South winds 8 to 14 mph with local gusts up to 25 mph. * Mixing Height..........2500 ft AGL. * CWR....................60 percent. * Chance of thunder......9 percent. $$ CAZ221-269-122015- Stanislaus NF West of the Sierra Crest- Northern Sierra Including the Tahoe and Eldorado NF/S West of the Sierra Crest- 115 PM PDT Sat Oct 11 2025 .TONIGHT... * Sky/Weather............Mostly clear. * Min Temperature........37-44 lower elevations...except 26-36 higher elevations. * 24 HR Trend..........Little change. * Max Humidity...........63-78 percent. * 24 HR Trend..........27 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...Northeast winds 6 to 12 mph. * Ridges/Upr Slopes....Northeast winds 6 to 12 mph. * CWR....................0 percent. * Mixing Height..........300 ft AGL. * Chance of thunder......0 percent. .SUNDAY... * Sky/Weather............Sunny. * Max Temperature........63-68 lower elevations...except 51-61 higher elevations. * 24 HR Trend..........7 degrees warmer. * Min Humidity...........18-30 percent. * 24 HR Trend..........19 percent down. * 20-Foot Winds.......... * Valleys/Lwr Slopes...East winds 4 to 10 mph shifting to the west up to 8 mph in the afternoon. * Ridges/Upr Slopes....East winds 7 to 13 mph shifting to the west 4 to 10 mph in the afternoon. * CWR....................0 percent. * Mixing Height..........3600 ft AGL. * Chance of thunder......0 percent. .SUNDAY NIGHT... * Sky/Weather............Mostly clear until early morning then becoming mostly cloudy. At lower elevations, a slight chance of showers after midnight. At higher elevations, a slight chance of snow showers after midnight. * Min Temperature........39-44 lower elevations...except 28-36 higher elevations. * Max Humidity...........69-84 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds up to 8 mph shifting to the southeast up to 7 mph after midnight. * Ridges/Upr Slopes....South winds 7 to 13 mph. * Mixing Height..........600 ft AGL. * CWR....................0 percent. * Chance of thunder......1 percent. .COLUMBUS DAY... * Sky/Weather............Showers likely at lower elevations....and snow showers and showers likely at higher elevations. Snow level 6000 feet increasing to 6500 feet in the afternoon. * Max Temperature........46-52 lower elevations...except 33-43 higher elevations. * Min Humidity...........67-82 percent. * 20-Foot Winds.......... * Valleys/Lwr Slopes...South winds 10 to 16 mph. * Ridges/Upr Slopes....South winds 10 to 16 mph with local gusts up to 30 mph. * Mixing Height..........2600 ft AGL. * CWR....................40 percent. * Chance of thunder......5 percent. $$ .Extended... ...Shasta County Mountains and Coastal Range .MONDAY NIGHT...Showers likely. Lows 32 to 41. Northeast winds 5 to 15 mph. .TUESDAY...Showers likely. Highs 42 to 51. East winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy with a chance of showers. Lows 34 to 43. Variable less than 5 mph. .WEDNESDAY...Mostly cloudy with a slight chance of showers. Highs 46 to 56. Variable less than 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 33 to 43. Variable less than 5 mph. .THURSDAY...Warmer. Mostly sunny. Highs 56 to 66. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 36 to 46. Northwest winds up to 10 mph. ...Northern Sierra and Lassen Park .MONDAY NIGHT...Showers. Lows 32 to 40. Southeast winds 5 to 15 mph. .TUESDAY...Showers. Highs 42 to 49. South winds up to 10 mph. .TUESDAY NIGHT...Showers likely. Lows 31 to 41. Variable less than 5 mph. .WEDNESDAY...Mostly cloudy with a chance of showers. Highs 45 to 53. Variable less than 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 31 to 40. Variable less than 5 mph. .THURSDAY...Not as cool. Sunny. Highs 56 to 64. Variable less than 5 mph. .THURSDAY NIGHT...Mostly clear. Lows 34 to 44. Northeast winds up to 10 mph. ...Sierra Nevada Foothills .MONDAY NIGHT...Showers. Lows 41 to 48. Southeast winds 5 to 15 mph. .TUESDAY...Showers. Highs 49 to 55. South winds 5 to 15 mph. .TUESDAY NIGHT...Showers likely. Lows 42 to 47. Variable less than 5 mph. .WEDNESDAY...Mostly cloudy with a chance of showers. Highs 53 to 60. Variable less than 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 41 to 46. Variable less than 5 mph. .THURSDAY...Warmer, sunny. Highs 62 to 67. Variable less than 5 mph. .THURSDAY NIGHT...Mostly clear. Lows 44 to 49. Variable less than 5 mph. ...Central Valley and Delta .MONDAY NIGHT...Showers and a slight chance of thunderstorms. Lows 48 to 53. Southeast winds 5 to 15 mph. .TUESDAY...Showers. Highs 57 to 62. Southeast winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy with a chance of showers. Lows 47 to 52. Southeast winds up to 10 mph. .WEDNESDAY...Partly cloudy with a slight chance of showers. Highs 61 to 66. Variable less than 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows 45 to 50. Variable less than 5 mph. .THURSDAY...Mostly sunny. Highs 67 to 72. Northwest winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 47 to 52. Variable less than 5 mph. $$