Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

46°F

8°C

Humidity 98%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 10 Dec 11:52 PM PST
Extended Forecast for

11 Miles SE Agness OR

  • Overnight

    Overnight: Partly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53. East wind around 6 mph becoming light and variable.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. East wind around 9 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 57. East wind 6 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. East wind around 9 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 10pm.  Partly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain.  Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 42. Light and variable wind.
Thursday
Sunny, with a high near 53. East wind around 6 mph becoming light and variable.
Thursday Night
Mostly clear, with a low around 44. East wind around 9 mph.
Friday
Mostly sunny, with a high near 57. East wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 43. East wind around 9 mph.
Saturday
Sunny, with a high near 55.
Saturday Night
A 20 percent chance of rain after 10pm. Partly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 50.
Monday Night
Rain. Cloudy, with a low around 45.
Tuesday
Rain. Snow level 6400 feet. Mostly cloudy, with a high near 47.
Tuesday Night
Rain likely. Snow level 6000 feet. Mostly cloudy, with a low around 43.
Wednesday
Rain. Snow level 6300 feet. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Agness OR
 42.44°N 123.9°W (Elev. 3671 ft)
9:41 pm PST Dec 10, 2025
12am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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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