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

45°F

7°C

Humidity 81%
Wind Speed SW 7 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 13 Apr 12:52 AM PDT
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. West southwest wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain and snow showers between 11am and noon, then a chance of rain showers after noon.  Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 43. West wind 3 to 7 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow
    then Chance
    Showers

  • 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: Partly sunny, with a high near 48. Light west wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 11pm, then snow showers likely after 11pm.  Snow level 5300 feet lowering to 4400 feet. Mostly cloudy, with a low around 37. Southwest wind 13 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Rain and snow showers.  Snow level 4800 feet. High near 38. Breezy.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow and
    Breezy

  • 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.  Mostly sunny, with a high near 41.

    High: 41 °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. West southwest wind 3 to 5 mph.
Monday
A chance of rain and snow showers between 11am and noon, then a chance of rain showers after noon. Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 43. West wind 3 to 7 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 33. West northwest wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 48. Light west wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 11pm, then snow showers likely after 11pm. Snow level 5300 feet lowering to 4400 feet. Mostly cloudy, with a low around 37. Southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday
Rain and snow showers. Snow level 4800 feet. High near 38. Breezy. 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. Mostly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 27.
Friday
Mostly sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 55.
Saturday Night
A chance of rain and snow. Snow level 6600 feet lowering to 5700 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 47.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.94°N 123.25°W (Elev. 4360 ft)
1:01 am PDT Apr 13, 2026
1am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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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