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

37°F

3°C

Humidity 99%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 29 Jan 07:52 AM PST
Extended Forecast for

16 Miles SE Agness OR

  • Today

    Today: A slight chance of showers between 9am and 2pm.  Mostly cloudy, with a high near 57. South wind around 7 mph.  Chance of precipitation is 20%.

    High: 57 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. South wind around 7 mph.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61. South southwest wind around 7 mph.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. East southeast wind around 6 mph.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63. South southeast wind around 7 mph.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain
    Likely

  • Sunday

    Sunday: Rain, mainly before 4pm.  High near 55. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: A slight chance of rain before 10am.  Mostly sunny, with a high near 57.

    High: 57 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers between 9am and 2pm. Mostly cloudy, with a high near 57. South wind around 7 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 48. South wind around 7 mph.
Friday
Partly sunny, with a high near 61. South southwest wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 47. East southeast wind around 6 mph.
Saturday
Partly sunny, with a high near 63. South southeast wind around 7 mph.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly before 4pm. High near 55. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 42.
Monday
A slight chance of rain before 10am. Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
3:41 am PST Jan 29, 2026
8am 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