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

Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

77°F

25°C

Humidity 23%
Wind Speed NNW 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 21 May 01:00 PM PDT
Extended Forecast for

Montague CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. North wind 3 to 8 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 49. North wind 9 to 14 mph becoming light north northwest after midnight. Winds could gust as high as 26 mph.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 22 mph.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 81. Breezy.

    High: 81 °F

    Sunny then
    Mostly Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 86. North wind 3 to 8 mph.
Tonight
Clear, with a low around 49. North wind 9 to 14 mph becoming light north northwest after midnight. Winds could gust as high as 26 mph.
Friday
Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 51. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 22 mph.
Saturday
Sunny, with a high near 89. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Mostly sunny, with a high near 81. Breezy.
Monday Night
A slight chance of rain after 11pm. Partly cloudy, with a low around 40. Windy.
Tuesday
A chance of rain. Snow level 5200 feet rising to 6500 feet in the afternoon. Mostly sunny, with a high near 67.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 39.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
1:01 pm PDT May 21, 2026
Forecast Valid:
1pm PDT May 21, 2026-6pm PDT May 27, 2026
 
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