Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

45°F

7°C

Humidity 94%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 21 Apr 09:52 PM PDT
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Tonight

    Tonight: A chance of rain before 3am, then a chance of rain after 5am.  Snow level 4500 feet. Mostly cloudy, with a low around 40. West southwest wind 3 to 6 mph.  Chance of precipitation is 50%.

    Low: 40 °F

    Chance Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly after 9am.  Snow level 4300 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 59. Light west wind increasing to 5 to 10 mph in the morning.

    High: 59 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. West wind 5 to 8 mph becoming calm  in the evening.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 39. North wind around 5 mph becoming calm  in the evening.

    Low: 39 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Saturday

    Saturday: A slight chance of rain after 11am.  Sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm.  Partly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of rain before 3am, then a chance of rain after 5am. Snow level 4500 feet. Mostly cloudy, with a low around 40. West southwest wind 3 to 6 mph. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of rain, mainly after 9am. Snow level 4300 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 59. Light west wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 36. West wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 70. Light and variable wind.
Thursday Night
Clear, with a low around 39. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 75.
Friday Night
Clear, with a low around 42.
Saturday
A slight chance of rain after 11am. Sunny, with a high near 72.
Saturday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 40.
Sunday
A chance of rain, mainly after 11am. Mostly sunny, with a high near 66.
Sunday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Monday
A chance of rain. Mostly sunny, with a high near 67.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 42.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
10:02 pm PDT Apr 21, 2026
10pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026
 
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Additional Resources

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