Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

38°F

3°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.38 in (1028.79 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 07 Dec 11:53 PM PST
Extended Forecast for

16 Miles NNE Weed CA

  • Overnight

    Overnight: Partly cloudy, with a low around 34. West southwest wind 7 to 10 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. West southwest wind 11 to 21 mph, with gusts as high as 31 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44. Breezy, with a west southwest wind 17 to 23 mph, with gusts as high as 34 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. West northwest wind 13 to 16 mph, with gusts as high as 24 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Thursday Night

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

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 34. West southwest wind 7 to 10 mph.
Monday
Mostly sunny, with a high near 41. West wind 11 to 14 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 37. West southwest wind 11 to 21 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 44. Breezy, with a west southwest wind 17 to 23 mph, with gusts as high as 34 mph.
Tuesday Night
Partly cloudy, with a low around 39. West northwest wind 13 to 16 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Weed CA
 41.63°N 122.23°W (Elev. 6667 ft)
11:06 pm PST Dec 7, 2025
12am PST Dec 8, 2025-6pm PST Dec 14, 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