Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today 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. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

29°F

-2°C

Humidity 100%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 16 Apr 05:52 AM PDT
Extended Forecast for

9 Miles WNW Illinois Valley OR

Frost Advisory April 16, 06:25am until April 16, 09:00am
Freeze Warning April 17, 03:00am until April 17, 09:00am
Click here for hazard details and duration
...
Freeze Warning
  •  
    Frost Advisory April 16, 06:25am until April 16, 09:00am

    NOW until 9:00am Thu

    Frost Advisory

  • Today

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 31. East northeast wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57. East wind 8 to 11 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Northwest wind 6 to 8 mph becoming southeast after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 58. Southeast wind 6 to 10 mph becoming west southwest in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of rain.  Snow level 6600 feet. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely.  Snow level 6400 feet. Mostly cloudy, with a high near 48. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 48 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain.  Snow level 5500 feet. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 44. North wind 7 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 31. East northeast wind 10 to 14 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 57. East wind 8 to 11 mph.
Friday Night
Partly cloudy, with a low around 39. Northwest wind 6 to 8 mph becoming southeast after midnight.
Saturday
Mostly sunny, with a high near 58. Southeast wind 6 to 10 mph becoming west southwest in the afternoon.
Saturday Night
A 50 percent chance of rain. Snow level 6600 feet. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Snow level 6400 feet. Mostly cloudy, with a high near 48. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain. Snow level 5500 feet. Mostly cloudy, with a low around 42.
Monday
Rain. Snow level 4800 feet rising to 5300 feet in the afternoon. Mostly cloudy, with a high near 47.
Monday Night
Rain likely, mainly before 11pm. Snow level 5300 feet. Mostly cloudy, with a low around 41.
Tuesday
Rain likely. Snow level 5000 feet rising to 5500 feet in the afternoon. Mostly cloudy, with a high near 47.
Tuesday Night
Rain likely. Snow level 5700 feet lowering to 5100 feet after midnight . Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Snow level 5200 feet. Partly sunny, with a high near 49.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
4:40 am PDT Apr 16, 2026
6am PDT Apr 16, 2026-6pm PDT Apr 22, 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