Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase 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 97%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 29 Jan 12:52 AM PST
Extended Forecast for

17 Miles SSE Agness OR

  • Overnight

    Overnight: A 20 percent chance of showers before 4am.  Snow level 5400 feet. Mostly cloudy, with a low around 43. South wind 8 to 10 mph.

    Low: 43 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 11am.  Snow level 5400 feet rising to 6200 feet in the afternoon. Mostly cloudy, with a high near 52. South wind around 9 mph.

    High: 52 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46. South wind around 10 mph.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 10am.  Partly sunny, with a high near 56. South wind around 9 mph.

    High: 56 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48. East wind around 9 mph.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

  • Sunday

    Sunday: Rain.  Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 4am.  Snow level 5100 feet. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Overnight
A 20 percent chance of showers before 4am. Snow level 5400 feet. Mostly cloudy, with a low around 43. South wind 8 to 10 mph.
Thursday
A 30 percent chance of showers, mainly before 11am. Snow level 5400 feet rising to 6200 feet in the afternoon. Mostly cloudy, with a high near 52. South wind around 9 mph.
Thursday Night
Mostly cloudy, with a low around 46. South wind around 10 mph.
Friday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 56. South wind around 9 mph.
Friday Night
Mostly cloudy, with a low around 48. East wind around 9 mph.
Saturday
Partly sunny, with a high near 60.
Saturday Night
A 40 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 47.
Sunday
Rain. Mostly cloudy, with a high near 49.
Sunday Night
A chance of rain, mainly before 4am. Snow level 5100 feet. Mostly cloudy, with a low around 42.
Monday
A slight chance of rain before 10am. Snow level 4700 feet rising to 5300 feet in the afternoon. Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
12:30 am PST Jan 29, 2026
1am 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