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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

47°F

8°C

Humidity 84%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 18 Nov 02:52 AM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. East northeast wind around 6 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. East northeast wind around 5 mph.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers likely after 4pm. Increasing clouds, with a high near 59. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 60%.

    High: 59 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. Low around 41. East northeast wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before 10am. Partly sunny, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 39. Calm wind.
Tuesday
Mostly sunny, with a high near 57. East northeast wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 37. East northeast wind around 5 mph.
Wednesday
Showers likely after 4pm. Increasing clouds, with a high near 59. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 60%.
Wednesday Night
Showers. Low around 41. East northeast wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before 10am. Partly sunny, with a high near 55. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
A slight chance of showers. Mostly sunny, with a high near 63.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 38.
Monday
A chance of showers. Partly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
Last Update:
2:11 am PST Nov 18, 2025
Forecast Valid:
3am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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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