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

48°F

9°C

Humidity 78%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 12 Apr 08:52 PM PDT
Extended Forecast for

17 Miles NE Happy Camp CA

  • Tonight

    Tonight: A chance of rain and snow before midnight, then a chance of snow after 3am. Mostly cloudy, with a steady temperature around 37. Southwest wind around 7 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 37 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A chance of snow before 11am, then a chance of rain and snow between 11am and 1pm, then a chance of rain after 1pm. Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 43. Southwest wind 6 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A 30 percent chance of rain before 11pm. Snow level 5500 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 36. Northwest wind 6 to 10 mph.

    Low: 36 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then snow after 11pm. Low around 39. Southwest wind 17 to 20 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 39 °F

    Rain/Snow
    Likely then
    Snow

  • Wednesday

    Wednesday: Snow, possibly mixed with rain. Snow level 4800 feet. High near 41. Breezy. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 28. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow

  • Thursday

    Thursday: A slight chance of snow before 11am. Sunny, with a high near 41.

    High: 41 °F

    Slight Chance
    Snow then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain and snow before midnight, then a chance of snow after 3am. Mostly cloudy, with a steady temperature around 37. Southwest wind around 7 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday
A chance of snow before 11am, then a chance of rain and snow between 11am and 1pm, then a chance of rain after 1pm. Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 43. Southwest wind 6 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Monday Night
A 30 percent chance of rain before 11pm. Snow level 5500 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 36. Northwest wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 49. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then snow after 11pm. Low around 39. Southwest wind 17 to 20 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Snow, possibly mixed with rain. Snow level 4800 feet. High near 41. Breezy. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 28. 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 41.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
A chance of rain. Snow level 6500 feet. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Snow level 6000 feet. Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NE Happy Camp CA
 41.98°N 123.14°W (Elev. 4600 ft)
Last Update:
4:56 pm PDT Apr 12, 2026
Forecast Valid:
9pm 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