Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

54°F

12°C

Humidity 64%
Wind Speed NNE 2 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 29 Jan 01:52 PM PST
Extended Forecast for

3 Miles SE Illinois Valley OR

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 55. Calm wind.

    High: 55 °F

    Mostly Cloudy

  • Tonight

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

    Low: 38 °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 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 37.

    Low: 37 °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 chance of rain before 10pm.  Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    and Patchy
    Fog 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

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 55. Calm wind.
Tonight
Mostly cloudy, with a low around 38. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind.
Friday Night
Mostly cloudy, with a low around 37. Calm wind.
Saturday
Partly sunny, with a high near 59. Calm wind.
Saturday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 37.
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 chance of rain before 10pm. Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 32.
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
Mostly clear, with a low around 35.
Wednesday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Illinois Valley OR
 42.08°N 123.65°W (Elev. 1644 ft)
2:22 pm PST Jan 29, 2026
2pm PST Jan 29, 2026-6pm PST Feb 4, 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