Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

75°F

24°C

Humidity 27%
Wind Speed N 16 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 20 May 06:53 PM PDT
Extended Forecast for

Montague CA

  • Tonight

    Tonight: Mostly clear, with a low around 45. North wind 11 to 16 mph becoming light  in the evening. Winds could gust as high as 29 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. North wind 5 to 10 mph becoming light northeast  in the evening. Winds could gust as high as 23 mph.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Light and variable wind.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 45. North wind 11 to 16 mph becoming light in the evening. Winds could gust as high as 29 mph.
Thursday
Sunny, with a high near 87. Calm wind becoming north 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 49. North wind 5 to 10 mph becoming light northeast in the evening. Winds could gust as high as 23 mph.
Friday
Sunny, with a high near 89. Light and variable wind.
Friday Night
Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 50.
Memorial Day
Mostly sunny, with a high near 82. Breezy.
Monday Night
Partly cloudy, with a low around 41. Breezy.
Tuesday
A slight chance of rain. Snow level 5500 feet rising to 6400 feet in the afternoon. Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
4:40 pm PDT May 20, 2026
7pm PDT May 20, 2026-6pm PDT May 27, 2026
 
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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