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

Heavy Snow in the Central/Southern Rockies; Below Average Temperatures in the Central and Eastern US

Moderate to heavy snowfall is expected in the central/southern Rockies and adjacent High Plains today. Lake-enhanced snowfall is expected downwind of the Great Lakes today. Showers and thunderstorms will be possible this evening into tonight across the western Gulf Coast states. Temperatures across much of the central and eastern CONUS will remain below average and chilly to end the week. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

29°F

-2°C

Humidity 98%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 03 Dec 03:52 AM PST
Extended Forecast for

11 Miles ESE Illinois Valley OR

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 41. East northeast wind 3 to 8 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a temperature rising to around 40 by 5am. East wind around 7 mph.

    Low: 37 °F⇑

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 4pm. Partly sunny, with a high near 44. Light and variable wind becoming north northwest around 5 mph in the afternoon.

    High: 44 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41. Calm wind becoming west around 5 mph.

    Low: 41 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 46. West wind around 5 mph. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain. Low around 40. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain

  • Saturday

    Saturday: Rain. Snow level 7900 feet. High near 46. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 10pm. Snow level 7400 feet. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely, mainly between 10am and 4pm. Snow level 7200 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Rain Likely

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 41. East northeast wind 3 to 8 mph.
Tonight
Partly cloudy, with a temperature rising to around 40 by 5am. East wind around 7 mph.
Thursday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 44. Light and variable wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41. Calm wind becoming west around 5 mph.
Friday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 46. West wind around 5 mph. Chance of precipitation is 60%.
Friday Night
Rain. Low around 40. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. Snow level 7900 feet. High near 46. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain likely, mainly before 10pm. Snow level 7400 feet. Mostly cloudy, with a low around 41.
Sunday
Rain likely, mainly between 10am and 4pm. Snow level 7200 feet. Mostly cloudy, with a high near 44.
Sunday Night
A chance of rain, mainly before 10pm. Snow level 7000 feet. Mostly cloudy, with a low around 39.
Monday
A slight chance of rain. Snow level 6900 feet. Partly sunny, with a high near 46.
Monday Night
A slight chance of rain. Snow level 7600 feet rising to 8100 feet after midnight. Mostly cloudy, with a low around 41.
Tuesday
A chance of rain. Partly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ESE Illinois Valley OR
 42.03°N 123.48°W (Elev. 5197 ft)
Last Update:
3:41 am PST Dec 3, 2025
Forecast Valid:
4am PST Dec 3, 2025-6pm PST Dec 9, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation