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

Tracking Atmospheric River for California; Record Temperatures Further East

An atmospheric river will bring gusty to high winds, moderate to heavy rainfall, and potential flooding to California today through Saturday. Heavy snow will be possible over the Sierra Nevada mountains into Friday associated with this atmospheric river. East of these impacts dozens of record high maximum and high minimum temperatures may be broken or tied today and Friday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

67°F

19°C

Humidity 43%
Wind Speed SW 7 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 13 Nov 02:52 PM PST
Extended Forecast for

16 Miles NNE Happy Camp CA

  • This Afternoon

    This Afternoon: A 40 percent chance of rain. Snow level 7400 feet. Partly sunny, with a high near 48. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    High: 48 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 3am, then a chance of rain and snow. Snow level 6100 feet lowering to 5600 feet after midnight . Partly cloudy, with a low around 36. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of rain and snow before 9am, then a slight chance of rain. Snow level 5400 feet rising to 6400 feet in the afternoon. Mostly sunny, with a high near 46. South wind 5 to 9 mph becoming light south southeast in the afternoon. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. South wind 3 to 6 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 51. Southeast wind around 6 mph becoming calm in the morning.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 4am. Snow level 8000 feet. Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain likely, mainly after 10am. Snow level 6900 feet. Mostly cloudy, with a high near 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain before 10pm, then rain and snow between 10pm and 1am, then snow after 1am. Snow level 5900 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain/Snow

  • Monday

    Monday: Snow likely, mainly before 4pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Snow Likely

Detailed Forecast

This Afternoon
A 40 percent chance of rain. Snow level 7400 feet. Partly sunny, with a high near 48. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Tonight
A chance of rain before 3am, then a chance of rain and snow. Snow level 6100 feet lowering to 5600 feet after midnight . Partly cloudy, with a low around 36. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A slight chance of rain and snow before 9am, then a slight chance of rain. Snow level 5400 feet rising to 6400 feet in the afternoon. Mostly sunny, with a high near 46. South wind 5 to 9 mph becoming light south southeast in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 37. South wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 51. Southeast wind around 6 mph becoming calm in the morning.
Saturday Night
A 30 percent chance of rain after 4am. Snow level 8000 feet. Partly cloudy, with a low around 38.
Sunday
Rain likely, mainly after 10am. Snow level 6900 feet. Mostly cloudy, with a high near 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain before 10pm, then rain and snow between 10pm and 1am, then snow after 1am. Snow level 5900 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 34.
Monday
Snow likely, mainly before 4pm. Mostly cloudy, with a high near 36.
Monday Night
A chance of snow before 10pm. Mostly cloudy, with a low around 28.
Tuesday
A slight chance of snow. Partly sunny, with a high near 37.
Tuesday Night
A slight chance of snow. Partly cloudy, with a low around 28.
Wednesday
Rain and snow. Partly sunny, with a high near 38.
Wednesday Night
Snow. Mostly cloudy, with a low around 31.
Thursday
Snow likely. Mostly cloudy, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Happy Camp CA
 42.02°N 123.27°W (Elev. 5052 ft)
Last Update:
2:21 pm PST Nov 13, 2025
Forecast Valid:
3pm PST Nov 13, 2025-6pm PST Nov 20, 2025
 
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