Current conditions at
Montague Siskiyou County Airport (KSIY)
Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.
Clear
23°C
74°F
| Humidity | 21% |
| Wind Speed | N 3 MPH |
| Barometer | 30.05 in (1017.61 mb) |
| Dewpoint | 0°C (32°F) |
| Visibility | 16 km |
| Last update | 20 May 12:53 PM PDT |
Extended Forecast for
Montague CA
This Afternoon
High: 27 °C
Sunny
Tonight
Low: 7 °C
Mostly Clear
Thursday
High: 30 °C
Sunny
Thursday Night
Low: 9 °C
Mostly Clear
Friday
High: 31 °C
Sunny
Friday Night
Low: 11 °C
Mostly Clear
Saturday
High: 31 °C
Sunny
Saturday Night
Low: 11 °C
Mostly Clear
Sunday
High: 31 °C
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 27. North wind 5 to 14 km/h, with gusts as high as 29 km/h.
Tonight
Mostly clear, with a low around 7. North wind 21 to 26 km/h becoming light after midnight. Winds could gust as high as 47 km/h.
Thursday
Sunny, with a high near 30. Light north northwest wind becoming north 8 to 13 km/h in the afternoon.
Thursday Night
Mostly clear, with a low around 9. North wind 11 to 16 km/h becoming light north northeast after midnight. Winds could gust as high as 39 km/h.
Friday
Sunny, with a high near 31. Calm wind.
Friday Night
Mostly clear, with a low around 11.
Saturday
Sunny, with a high near 31.
Saturday Night
Mostly clear, with a low around 11.
Sunday
Sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 10.
Memorial Day
Mostly sunny, with a high near 27. Breezy.
Monday Night
Partly cloudy, with a low around 5. Breezy.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 21.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Montague CA
41.74°N 122.53°W (Elev. 2589 m)
41.74°N 122.53°W (Elev. 2589 m)
11:26 am PDT May 20, 2026
1pm PDT May 20, 2026-6pm PDT May 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
