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Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

46°F

8°C

Humidity 70%
Wind Speed N 5 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 26 May 08:00 AM PDT
Extended Forecast for

Montague CA

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly between noon and 5pm. Snow level 4600 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 60. Light northwest wind becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 5am. Increasing clouds, with a low around 40. North northwest wind 5 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    Low: 40 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 5pm. High near 64. West northwest wind 5 to 8 mph becoming east southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 10pm, then a chance of showers after 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 44. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 72. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly between noon and 5pm. Snow level 4600 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 60. Light northwest wind becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Showers likely, mainly after 5am. Increasing clouds, with a low around 40. North northwest wind 5 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Wednesday
Showers, with thunderstorms also possible after 5pm. High near 64. West northwest wind 5 to 8 mph becoming east southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers after 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 44. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 72. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 77.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
5:31 am PDT May 26, 2026
Forecast Valid:
8am PDT May 26, 2026-6pm PDT Jun 1, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation