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

47°F

8°C

Humidity 98%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 01 Jan 05:52 PM PST
Extended Forecast for

8 Miles WNW Illinois Valley OR

  • Tonight

    Tonight: Rain, mainly before 4am. Low around 44. South southwest wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Friday

    Friday: Rain likely, mainly after 4pm. Partly sunny, with a high near 48. South southeast wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 48 °F

    Chance Rain
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain. Snow level 6700 feet lowering to 5900 feet after midnight . Low around 41. South southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 41 °F

    Rain

  • Saturday

    Saturday: Rain. Snow level 5300 feet. High near 43. South wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 43 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. The rain could be heavy at times. Snow level 5300 feet. Low around 38. South southwest wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

    Low: 38 °F

    Heavy Rain

  • Sunday

    Sunday: Rain. Snow level 4500 feet. High near 40. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 40 °F

    Rain

  • Sunday Night

    Sunday Night: Rain before 1am, then rain, possibly mixed with snow. Snow level 4000 feet. Low around 35. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain then
    Rain/Snow

  • Monday

    Monday: Rain, possibly mixed with snow, becoming all rain after 1pm. Snow level 3900 feet. Mostly cloudy, with a high near 39.

    High: 39 °F

    Rain/Snow

  • Monday Night

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

    Low: 33 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Rain, mainly before 4am. Low around 44. South southwest wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain likely, mainly after 4pm. Partly sunny, with a high near 48. South southeast wind 7 to 10 mph. Chance of precipitation is 60%.
Friday Night
Rain. Snow level 6700 feet lowering to 5900 feet after midnight . Low around 41. South southeast wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday
Rain. Snow level 5300 feet. High near 43. South wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Saturday Night
Rain. The rain could be heavy at times. Snow level 5300 feet. Low around 38. South southwest wind 18 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Sunday
Rain. Snow level 4500 feet. High near 40. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
Rain before 1am, then rain, possibly mixed with snow. Snow level 4000 feet. Low around 35. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday
Rain, possibly mixed with snow, becoming all rain after 1pm. Snow level 3900 feet. Mostly cloudy, with a high near 39.
Monday Night
A chance of rain before 10pm, then a slight chance of rain and snow. Snow level 4000 feet. Mostly cloudy, with a low around 33.
Tuesday
A chance of rain and snow before 1pm, then a chance of rain. Snow level 4000 feet rising to 4600 feet in the afternoon. Partly sunny, with a high near 41.
Tuesday Night
Rain likely, possibly mixed with snow. Snow level 4400 feet. Mostly cloudy, with a low around 35.
Wednesday
Rain and snow likely. Snow level 3400 feet. Mostly cloudy, with a high near 38.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 32.
Thursday
Snow likely. Partly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Illinois Valley OR
 42.14°N 123.81°W (Elev. 3209 ft)
Last Update:
6:47 pm PST Jan 1, 2026
Forecast Valid:
6pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation