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

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Nov 08:35 AM PST
Extended Forecast for

15 Miles NNE Montague CA

  • Today

    Today: Patchy fog before 10am.  Otherwise, sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 33. North wind around 5 mph becoming calm  in the evening.

    Low: 33 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers after 4pm.  Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 56. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 56 °F

    Patchy Fog
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 10pm and 4am.  Mostly cloudy, with a low around 37. Southeast wind 5 to 7 mph becoming east northeast in the evening.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers, mainly before 10am.  Snow level 5300 feet. Partly sunny, with a high near 52. East wind around 5 mph.

    High: 52 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Thursday Night

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

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 55.

    High: 55 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, sunny, with a high near 55. Light and variable wind.
Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 33. North wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers after 4pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 56. Calm wind becoming south southeast around 6 mph in the afternoon.
Wednesday Night
Showers likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 37. Southeast wind 5 to 7 mph becoming east northeast in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 50 percent chance of showers, mainly before 10am. Snow level 5300 feet. Partly sunny, with a high near 52. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly 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:
15 Miles NNE Montague CA
 41.93°N 122.44°W (Elev. 2198 ft)
3:41 am PST Nov 18, 2025
8am 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