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

Severe Weather for Northeast Southeastward into the Southern Plains; Flooding in the Upper Great Lakes

Severe thunderstorms are expected from the Northeast to Texas through the night and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains and the mid-Atlantic. There is late-season snow over the Northern/Central Rockies and the Northern Plains. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

29°F

-2°C

Humidity 97%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 17 Apr 02:52 AM PDT
Extended Forecast for

9 Miles ENE Happy Camp CA

Freeze Warning April 17, 03:45am until April 17, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning April 17, 03:45am until April 17, 09:00am

    NOW until 9:00am Fri

    Freeze Warning

  • Overnight

    Low: 34 °F

    Areas Frost

  • Friday

    Friday: Areas of frost before 8am. Otherwise, sunny, with a high near 69. East northeast wind 5 to 7 mph becoming calm.

    High: 69 °F

    Areas Frost
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46. West wind 5 to 8 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain. Partly sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 64.

    High: 64 °F

    Rain Likely

Detailed Forecast

Overnight
Areas of frost. Otherwise, clear, with a steady temperature around 34. Light east southeast wind.
Friday
Areas of frost before 8am. Otherwise, sunny, with a high near 69. East northeast wind 5 to 7 mph becoming calm.
Friday Night
Partly cloudy, with a low around 40. Light and variable wind.
Saturday
Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 46. West wind 5 to 8 mph becoming calm in the evening.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 72.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46.
Monday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 64.
Monday Night
Rain, mainly before 11pm. Mostly cloudy, with a low around 41.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 62.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Partly sunny, with a high near 60.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 39.
Thursday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
Last Update:
2:20 am PDT Apr 17, 2026
Forecast Valid:
3am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation