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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

46°F

8°C

Humidity 99%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 02 Jan 07:52 AM PST
Extended Forecast for

7 Miles SW Illinois Valley OR

  • Today

    Today: A chance of rain between 9am and 4pm. Partly sunny, with a high near 52. Light and variable wind becoming south southeast 5 to 8 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain

  • Tonight

    Tonight: Rain. Low around 42. South wind 7 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Rain

  • Saturday

    Saturday: Rain. The rain could be heavy at times. Snow level 5200 feet. High near 47. South wind 11 to 18 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 47 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Some of the storms could produce heavy rainfall. Snow level 5500 feet lowering to 5000 feet after midnight . Low around 39. South southwest wind 14 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 39 °F

    Heavy Rain

  • Sunday

    Sunday: Rain. Snow level 4300 feet. High near 42. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 42 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Snow level 3900 feet. Low around 36. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain

  • Monday

    Monday: Rain, mainly before 4pm. Snow level 3900 feet. High near 43. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Rain

  • Monday Night

    Monday Night: A chance of rain before 10pm, then a slight chance of rain and snow after 4am. Snow level 4000 feet. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of rain and snow before 10am, then rain likely. Snow level 4100 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance
    Rain/Snow
    then Rain
    Likely

Detailed Forecast

Today
A chance of rain between 9am and 4pm. Partly sunny, with a high near 52. Light and variable wind becoming south southeast 5 to 8 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Tonight
Rain. Low around 42. South wind 7 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Rain. The rain could be heavy at times. Snow level 5200 feet. High near 47. South wind 11 to 18 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Rain and possibly a thunderstorm before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then rain after 1am. Some of the storms could produce heavy rainfall. Snow level 5500 feet lowering to 5000 feet after midnight . Low around 39. South southwest wind 14 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday
Rain. Snow level 4300 feet. High near 42. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
Rain. Snow level 3900 feet. Low around 36. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Rain, mainly before 4pm. Snow level 3900 feet. High near 43. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A chance of rain before 10pm, then a slight chance of rain and snow after 4am. Snow level 4000 feet. Mostly cloudy, with a low around 33.
Tuesday
A slight chance of rain and snow before 10am, then rain likely. Snow level 4100 feet. Mostly cloudy, with a high near 44.
Tuesday Night
Rain likely. Snow level 4300 feet. Mostly cloudy, with a low around 35.
Wednesday
Rain. Snow level 3500 feet. Mostly cloudy, with a high near 41.
Wednesday Night
Rain and snow likely. Snow level 2800 feet. Mostly cloudy, with a low around 31.
Thursday
A chance of rain and snow. Snow level rising to 3000 feet in the afternoon. Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Illinois Valley OR
 42.03°N 123.78°W (Elev. 2428 ft)
Last Update:
3:41 am PST Jan 2, 2026
Forecast Valid:
8am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation