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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

61°F

16°C

Humidity 44%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 03 Oct 09:35 AM PDT
Extended Forecast for

6 Miles S Montague CA

  • Today

    Today: Sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. Northwest wind 5 to 8 mph becoming south in the evening.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 88 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. South wind 5 to 9 mph becoming calm after midnight.

    Low: 55 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 91. Calm wind.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. Light and variable wind.
Tonight
Increasing clouds, with a low around 53. Northwest wind 5 to 8 mph becoming south in the evening.
Sunday
Mostly cloudy, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. South wind 5 to 9 mph becoming calm after midnight.
Monday
Sunny, with a high near 91. Calm wind.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Montague CA
 41.65°N 122.54°W (Elev. 2664 ft)
Last Update:
7:51 am PDT Oct 3, 2026
Forecast Valid:
9am PDT Oct 3, 2026-6pm PDT Oct 9, 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