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

39°F

4°C

Humidity 71%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 16 Apr 11:52 PM PDT
Extended Forecast for

11 Miles NNE Happy Camp CA

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

    NOW until 11:00am Fri

    Freeze Warning

  • Overnight

    Low: 28 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 52. Calm wind becoming southeast around 5 mph.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Calm wind becoming southwest 5 to 7 mph after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. South southwest wind 7 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain. Snow level 6100 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 50 percent chance of rain. Snow level 7200 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Monday

    Monday: Rain likely, possibly mixed with snow, becoming all rain after 5pm. Snow level 5900 feet. Mostly cloudy, with a high near 46.

    High: 46 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Clear, with a low around 28. Northeast wind 5 to 9 mph.
Friday
Sunny, with a high near 52. Calm wind becoming southeast around 5 mph.
Friday Night
Partly cloudy, with a low around 39. Calm wind becoming southwest 5 to 7 mph after midnight.
Saturday
Mostly sunny, with a high near 57. South southwest wind 7 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 43. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of rain. Snow level 6100 feet rising to 7000 feet in the afternoon. Mostly cloudy, with a high near 55.
Sunday Night
A 50 percent chance of rain. Snow level 7200 feet lowering to 6300 feet after midnight . Mostly cloudy, with a low around 41.
Monday
Rain likely, possibly mixed with snow, becoming all rain after 5pm. Snow level 5900 feet. Mostly cloudy, with a high near 46.
Monday Night
Rain before 8pm, then rain and snow. Snow level 6000 feet lowering to 5300 feet after midnight . Mostly cloudy, with a low around 37.
Tuesday
Rain and snow likely before 11am, then rain. Snow level 5000 feet rising to 5500 feet in the afternoon. Mostly cloudy, with a high near 44.
Tuesday Night
Rain and snow likely. Snow level 5700 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 38.
Wednesday
Rain and snow likely. Snow level 5200 feet. Mostly cloudy, with a high near 42.
Wednesday Night
A chance of rain. Snow level 5600 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 35.
Thursday
Sunny, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.95°N 123.28°W (Elev. 4839 ft)
Last Update:
11:59 pm PDT Apr 16, 2026
Forecast Valid:
12am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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