Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

64°F

18°C

Humidity 63%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 08 Dec 12:52 PM PST
Extended Forecast for

15 Miles NNE Happy Camp CA

  • This Afternoon

    This Afternoon: A 20 percent chance of rain after 2pm.  Partly sunny, with a high near 47. West southwest wind around 6 mph.

    High: 47 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. West southwest wind 10 to 13 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 10am.  Partly sunny, with a high near 48. West southwest wind 6 to 10 mph.

    High: 48 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 42. West southwest wind around 9 mph.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain.  Partly sunny, with a high near 51. South wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 51 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain after 2pm. Partly sunny, with a high near 47. West southwest wind around 6 mph.
Tonight
Mostly cloudy, with a low around 39. West southwest wind 10 to 13 mph.
Tuesday
A 30 percent chance of rain after 10am. Partly sunny, with a high near 48. West southwest wind 6 to 10 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 42. West southwest wind around 9 mph.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 51. South wind 5 to 7 mph becoming light and variable in the afternoon.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
A chance of rain. Snow level 7000 feet. Mostly cloudy, with a low around 38.
Sunday
A slight chance of rain. Snow level 6400 feet. Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NNE Happy Camp CA
 42.02°N 123.27°W (Elev. 5052 ft)
12:27 pm PST Dec 8, 2025
1pm PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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