National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

51°F

11°C

Humidity 81%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 14 Nov 07:52 PM PST
Extended Forecast for

Illinois Valley OR

  • Tonight

    Tonight: Rain, mainly after 9pm. Low around 37. South southwest wind 9 to 15 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly before 11am. Partly sunny, with a high near 53. South southwest wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely, mainly before 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 40. South southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain Likely
    and Patchy
    Fog

  • Monday

    Monday: Rain likely before 9am, then rain likely after 10am. Areas of fog before 11am. Snow level 4400 feet. Otherwise, partly sunny, with a high near 52. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Rain Likely
    and Areas Fog

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Rain likely after 4pm. Snow level 3200 feet rising to 4200 feet in the afternoon. Mostly sunny, with a high near 53. Chance of precipitation is 60%.

    High: 53 °F

    Mostly Sunny
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain. Snow level 4000 feet. Low around 37. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Wednesday

    Wednesday: Rain. Snow level 3900 feet rising to 4400 feet in the afternoon. Cloudy, with a high near 49.

    High: 49 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm. Snow level 4200 feet. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Rain Likely

Detailed Forecast

Tonight
Rain, mainly after 9pm. Low around 37. South southwest wind 9 to 15 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain likely, mainly before 11am. Partly sunny, with a high near 53. South southwest wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely, mainly before 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 40. South southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely before 9am, then rain likely after 10am. Areas of fog before 11am. Snow level 4400 feet. Otherwise, partly sunny, with a high near 52. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 24. Calm wind.
Tuesday
Rain likely after 4pm. Snow level 3200 feet rising to 4200 feet in the afternoon. Mostly sunny, with a high near 53. Chance of precipitation is 60%.
Tuesday Night
Rain. Snow level 4000 feet. Low around 37. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. Snow level 3900 feet rising to 4400 feet in the afternoon. Cloudy, with a high near 49.
Wednesday Night
Rain likely, mainly before 10pm. Snow level 4200 feet. Mostly cloudy, with a low around 26.
Thursday
A chance of rain, mainly before 4pm. Snow level 4100 feet rising to 4800 feet in the afternoon. Partly sunny, with a high near 52.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 54.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 26.
Saturday
A chance of rain. Snow level 4200 feet rising to 4700 feet in the afternoon. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.09°N 123.68°W (Elev. 1394 ft)
Last Update:
7:51 pm PST Nov 14, 2026
Forecast Valid:
8pm PST Nov 14, 2026-6pm PST Nov 21, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation