National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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.

Mostly Cloudy

39°F

4°C

Humidity 93%
Wind Speed SE 3 MPH
Barometer 30.38 in (1028.79 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 08 Dec 01:35 AM PST
Extended Forecast for

10 Miles NNE Montague CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before noon. Otherwise, mostly sunny, with a high near 54. South wind 3 to 5 mph.

    High: 54 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. South southwest wind around 7 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. South wind 6 to 9 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. South wind around 5 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 31. Calm wind.
Monday
Patchy fog before noon. Otherwise, mostly sunny, with a high near 54. South wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 31. South southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 55. South wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 33. South wind around 5 mph.
Wednesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.
Wednesday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 32.
Thursday
Patchy fog before 11am. Otherwise, sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 30.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 29.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Montague CA
 41.86°N 122.45°W (Elev. 2598 ft)
Last Update:
11:06 pm PST Dec 7, 2025
Forecast Valid:
1am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation