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 >

Hazardous Weather Conditions

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

12 Miles NE Happy Camp CA

Winter Storm Watch January 3, 04:00pm until January 4, 10:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Rain likely, mainly before 4am. Snow level 7400 feet. Mostly cloudy, with a low around 37. South wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain Likely

  • Friday

    Friday: A chance of rain before 4pm, then rain and snow likely. Snow level 6900 feet lowering to 6200 feet in the afternoon . Partly sunny, with a high near 41. Southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 41 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain and snow likely before 7pm, then rain between 7pm and 4am, then rain, possibly mixed with snow after 4am. Snow level 6300 feet. Steady temperature around 38. Southeast wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow, becoming all snow after 7am. High near 38. South southeast wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Rain/Snow
    then Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Low around 31. Breezy, with a south wind 18 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 31 °F

    Heavy Snow
    and Breezy

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 32. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 32 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. Low around 27. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 27 °F

    Snow

  • Monday

    Monday: Snow, mainly before 4pm. Mostly cloudy, with a high near 33.

    High: 33 °F

    Snow

  • Monday Night

    Monday Night: A chance of snow, mainly before 10pm. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Snow

Detailed Forecast

Tonight
Rain likely, mainly before 4am. Snow level 7400 feet. Mostly cloudy, with a low around 37. South wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A chance of rain before 4pm, then rain and snow likely. Snow level 6900 feet lowering to 6200 feet in the afternoon . Partly sunny, with a high near 41. Southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
Rain and snow likely before 7pm, then rain between 7pm and 4am, then rain, possibly mixed with snow after 4am. Snow level 6300 feet. Steady temperature around 38. Southeast wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday
Rain, possibly mixed with snow, becoming all snow after 7am. High near 38. South southeast wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday Night
Snow. The snow could be heavy at times. Low around 31. Breezy, with a south wind 18 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow. The snow could be heavy at times. High near 32. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
Snow. Low around 27. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Monday
Snow, mainly before 4pm. Mostly cloudy, with a high near 33.
Monday Night
A chance of snow, mainly before 10pm. Mostly cloudy, with a low around 29.
Tuesday
A chance of snow, mainly after 10am. Partly sunny, with a high near 36.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 31.
Wednesday
Snow likely. Mostly cloudy, with a high near 33.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 26.
Thursday
A chance of snow. Partly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Happy Camp CA
 41.92°N 123.21°W (Elev. 5666 ft)
Last Update:
3:41 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