Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

58°F

14°C

Humidity 71%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 08 Dec 04:52 PM PST
Extended Forecast for

7 Miles NNW Cave Junction OR

  • Tonight

    Tonight: A 20 percent chance of rain after 2am.  Mostly cloudy, with a low around 44. Calm wind becoming southwest around 6 mph.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after 9am.  Partly sunny, with a high near 57. Southwest wind around 6 mph.

    High: 57 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Patchy fog between 8am and 11am.  Otherwise, mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of rain after 2am. Mostly cloudy, with a low around 44. Calm wind becoming southwest around 6 mph.
Tuesday
A 30 percent chance of rain, mainly after 9am. Partly sunny, with a high near 57. Southwest wind around 6 mph.
Tuesday Night
A 20 percent chance of rain. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 47. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of rain before 10am. Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 60. Calm wind.
Wednesday Night
Partly cloudy, with a low around 43. Calm wind.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 40.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 41.
Saturday
A slight chance of rain after 4pm. Mostly sunny, with a high near 59.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 42.
Sunday
A chance of rain. Partly sunny, with a high near 53.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43.
Monday
Rain likely. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNW Cave Junction OR
 42.27°N 123.7°W (Elev. 2408 ft)
3:41 pm PST Dec 8, 2025
5pm PST Dec 8, 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