Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

47°F

8°C

Humidity 94%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 09 Dec 04:52 AM PST
Extended Forecast for

14 Miles SE Agness OR

  • Overnight

    Overnight: A 30 percent chance of rain.  Mostly cloudy, with a steady temperature around 49. South southwest wind around 8 mph.

    Low: 49 °F

    Chance Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 53. Southwest wind around 9 mph.

    High: 53 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am, then a slight chance of rain after 4am.  Mostly cloudy, with a steady temperature around 52. South wind 5 to 8 mph.  Chance of precipitation is 30%.

    Low: 52 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly between 10am and 4pm.  Mostly sunny, with a high near 58. South southeast wind around 5 mph becoming southwest in the afternoon.

    High: 58 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 10pm.  Partly cloudy, with a low around 45. Light south wind.

    Low: 45 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Thursday Night

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

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of rain. Mostly cloudy, with a steady temperature around 49. South southwest wind around 8 mph.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 53. Southwest wind around 9 mph.
Tuesday Night
A chance of rain before 1am, then a slight chance of rain after 4am. Mostly cloudy, with a steady temperature around 52. South wind 5 to 8 mph. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain, mainly between 10am and 4pm. Mostly sunny, with a high near 58. South southeast wind around 5 mph becoming southwest in the afternoon.
Wednesday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 45. Light south wind.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 43.
Saturday
A slight chance of rain after 4pm. Mostly sunny, with a high near 58.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Mostly cloudy, with a high near 51.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 47.
Monday
Rain. Mostly cloudy, with a high near 52.
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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 am PST Dec 9, 2025
5am PST Dec 9, 2025-6pm PST Dec 15, 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