Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

46°F

8°C

Humidity 91%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 29 Jan 05:52 PM PST
Extended Forecast for

3 Miles SSW Illinois Valley OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind.

    High: 58 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 50. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 10pm.  Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 55.

    High: 55 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind.
Friday Night
Mostly cloudy, with a low around 38. Calm wind.
Saturday
Partly sunny, with a high near 60. Calm wind.
Saturday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 39. Calm wind.
Sunday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 50. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 30 percent chance of rain before 10pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 33.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Illinois Valley OR
 42.07°N 123.7°W (Elev. 1512 ft)
3:41 pm PST Jan 29, 2026
6pm PST Jan 29, 2026-6pm PST Feb 5, 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