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

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Clear

55°F

13°C

Humidity 59%
Wind Speed S 4 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 08 Dec 02:53 PM PST
Extended Forecast for

16 Miles NNE Weed CA

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West southwest wind 14 to 21 mph, with gusts as high as 32 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. West wind 18 to 21 mph, with gusts as high as 32 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. West northwest wind 11 to 15 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. West northwest wind around 10 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. Northwest wind 8 to 10 mph.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. West southwest wind 14 to 21 mph, with gusts as high as 32 mph.
Tuesday
Mostly sunny, with a high near 45. West wind 18 to 21 mph, with gusts as high as 32 mph.
Tuesday Night
Partly cloudy, with a low around 38. West northwest wind 11 to 15 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 47. West northwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 38. Northwest wind 8 to 10 mph.
Thursday
Sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 46.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 41.
Sunday Night
A slight chance of rain and snow. Snow level 6700 feet. Mostly cloudy, with a low around 37.
Monday
A chance of rain and snow. Snow level rising to 7500 feet in the afternoon. Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Weed CA
 41.63°N 122.23°W (Elev. 6667 ft)
2:21 pm PST Dec 8, 2025
3pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database