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

46°F

8°C

Humidity 78%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 12 Apr 11:52 PM PDT
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Light west wind.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow showers before 11am, then a chance of rain and snow showers between 11am and 3pm, then a chance of rain showers after 3pm. Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 41. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. West northwest wind 3 to 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 5pm. Partly sunny, with a high near 46. Light west southwest wind increasing to 6 to 11 mph in the afternoon.

    High: 46 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before 8pm, then snow showers. Low around 36. Southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 36 °F

    Rain/Snow
    Likely then
    Snow Showers

  • Wednesday

    Wednesday: Snow showers before 8am, then rain, possibly mixed with snow showers between 8am and 2pm, then snow showers after 2pm. High near 37. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 11pm. Low around 25. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Showers
    then Chance
    Snow Showers

  • Thursday

    Thursday: A slight chance of snow before 11am. Sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow then
    Sunny

  • Thursday Night

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

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Light west wind.
Monday
A slight chance of snow showers before 11am, then a chance of rain and snow showers between 11am and 3pm, then a chance of rain showers after 3pm. Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 41. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 33. West northwest wind 3 to 6 mph.
Tuesday
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 46. Light west southwest wind increasing to 6 to 11 mph in the afternoon.
Tuesday Night
A chance of rain and snow showers before 8pm, then snow showers. Low around 36. Southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers before 8am, then rain, possibly mixed with snow showers between 8am and 2pm, then snow showers after 2pm. High near 37. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers, mainly before 11pm. Low around 25. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday
A slight chance of snow before 11am. Sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 27.
Friday
Mostly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 53.
Saturday Night
A chance of rain. Snow level 6500 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 40.
Sunday
A chance of rain and snow. Snow level 5100 feet. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.95°N 123.28°W (Elev. 4839 ft)
Last Update:
11:51 pm PDT Apr 12, 2026
Forecast Valid:
12am PDT Apr 13, 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