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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

47°F

8°C

Humidity 81%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 12 Apr 09:52 PM PDT
Extended Forecast for

12 Miles NNE Happy Camp CA

  • Tonight

    Tonight: A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around 31. West wind around 6 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: A chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 39. West southwest wind 5 to 9 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: A chance of rain and snow before 11pm. Mostly cloudy, with a low around 33. West northwest wind 5 to 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 5pm. Partly sunny, with a high near 43. Light west southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 43 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 8pm, then snow. Low around 34. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow
    then Snow

  • Wednesday

    Wednesday: Snow before 5pm, then snow, possibly mixed with rain. High near 36. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 25. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Thursday

    Thursday: A slight chance of snow before 11am. Sunny, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around 31. West wind around 6 mph. Total nighttime snow accumulation of less than a half inch possible.
Monday
A chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 39. West southwest wind 5 to 9 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday Night
A chance of rain and snow before 11pm. Mostly cloudy, with a low around 33. West northwest wind 5 to 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
A 30 percent chance of rain after 5pm. Partly sunny, with a high near 43. Light west southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
A chance of rain and snow before 8pm, then snow. Low around 34. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
Snow before 5pm, then snow, possibly mixed with rain. High near 36. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 25. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
A slight chance of snow before 11am. Sunny, with a high near 38.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
A chance of rain. Snow level 6400 feet. Mostly cloudy, with a low around 41.
Sunday
A chance of rain. Snow level 5900 feet. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.95°N 123.31°W (Elev. 4911 ft)
Last Update:
4:56 pm PDT Apr 12, 2026
Forecast Valid:
10pm PDT Apr 12, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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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