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 >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

57°F

14°C

Humidity 31%
Wind Speed N 9 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 16 Apr 05:52 PM PDT
Extended Forecast for

16 Miles NE Happy Camp CA

Freeze Warning April 17, 12:00am until April 17, 11:00am
Click here for hazard details and duration
Freeze Warning
  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. South wind around 5 mph becoming calm.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 11pm.  Mostly cloudy, with a low around 47. West southwest wind around 6 mph becoming light and variable.

    Low: 47 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 40 percent chance of rain.  Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain Likely

  • Monday

    Monday: Rain likely.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 11pm.  Snow level 6200 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 30. North wind 5 to 10 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 56. Light and variable wind.
Friday Night
Partly cloudy, with a low around 42. Light and variable wind.
Saturday
Mostly sunny, with a high near 62. South wind around 5 mph becoming calm.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 47. West southwest wind around 6 mph becoming light and variable.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 59.
Sunday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain likely. Mostly cloudy, with a high near 54.
Monday Night
Rain likely, mainly before 11pm. Snow level 6200 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 42.
Tuesday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Snow level 5600 feet. Mostly cloudy, with a high near 54.
Tuesday Night
Rain likely. Snow level 6000 feet lowering to 5400 feet after midnight . Mostly cloudy, with a low around 42.
Wednesday
Rain likely. Snow level 5200 feet rising to 5800 feet in the afternoon. Mostly cloudy, with a high near 52.
Wednesday Night
A chance of rain. Snow level 5900 feet lowering to 4900 feet after midnight . Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NE Happy Camp CA
 41.97°N 123.17°W (Elev. 2999 ft)
4:41 pm PDT Apr 16, 2026
6pm PDT Apr 16, 2026-6pm PDT Apr 23, 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