Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

62°F

17°C

Humidity 33%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 30 Jan 04:52 PM PST
Extended Forecast for

14 Miles SE Agness OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Southeast wind 3 to 6 mph.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58. East southeast wind around 6 mph becoming south southwest in the afternoon.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of rain, mainly after 10pm.  Snow level 5000 feet. Mostly cloudy, with a low around 45. South wind around 7 mph.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: Rain, mainly before 4pm.  Snow level 5600 feet. High near 51. South southwest wind around 7 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 10pm.  Snow level 5000 feet. Partly cloudy, with a low around 42. South southeast wind 3 to 5 mph.

    Low: 42 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 47. Southeast wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 58. East southeast wind around 6 mph becoming south southwest in the afternoon.
Saturday Night
A 50 percent chance of rain, mainly after 10pm. Snow level 5000 feet. Mostly cloudy, with a low around 45. South wind around 7 mph.
Sunday
Rain, mainly before 4pm. Snow level 5600 feet. High near 51. South southwest wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 30 percent chance of rain before 10pm. Snow level 5000 feet. Partly cloudy, with a low around 42. South southeast wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Agness OR
 42.42°N 123.87°W (Elev. 2461 ft)
3:41 pm PST Jan 30, 2026
5pm PST Jan 30, 2026-6pm PST Feb 6, 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