Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

36°F

2°C

Humidity 80%
Wind Speed NE 5 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 15 Mar 03:10 AM PDT
Extended Forecast for

Montague CA

  • Overnight

    Overnight: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. Calm wind.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 40. Calm wind.

    Low: 40 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 31. Calm wind.
Sunday
Mostly sunny, with a high near 67. Calm wind.
Sunday Night
Partly cloudy, with a low around 39. Calm wind.
Monday
Mostly sunny, with a high near 76. Calm wind.
Monday Night
Clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
3:21 am PDT Mar 15, 2026
3am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
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