Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

45°F

7°C

Humidity 82%
Wind Speed WSW 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 18 Nov 11:53 AM PST
Extended Forecast for

Montague CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. Calm wind.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 3am.  Otherwise, partly cloudy, with a low around 33. North wind around 6 mph becoming calm  in the evening.

    Low: 33 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers after 4pm.  Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 55. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 55 °F

    Areas Fog
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 10pm and 4am.  Mostly cloudy, with a low around 37. South southeast wind 7 to 9 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers, mainly before 10am.  Snow level 5200 feet. Partly sunny, with a high near 51. East wind 3 to 5 mph.

    High: 51 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Calm wind.
Tonight
Patchy fog before 2am, then patchy fog after 3am. Otherwise, partly cloudy, with a low around 33. North wind around 6 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers after 4pm. Areas of fog before 10am. Otherwise, mostly sunny, with a high near 55. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Wednesday Night
Showers likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 37. South southeast wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 40 percent chance of showers, mainly before 10am. Snow level 5200 feet. Partly sunny, with a high near 51. East wind 3 to 5 mph.
Thursday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 31.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 57.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 32.
Monday
A chance of showers. Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.74°N 122.53°W (Elev. 2589 ft)
10:05 am PST Nov 18, 2025
12pm PST Nov 18, 2025-6pm PST Nov 24, 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