
Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains
An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >
Current conditions at
Montague Siskiyou County Airport (KSIY)
Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.
Clear
42°F
6°C
| Humidity | 75% |
| Wind Speed | N 0 MPH |
| Barometer | 30.24 in (1024.04 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 01:53 AM PDT |
Extended Forecast for
Montague CA
Overnight

Low: 38 °F
Mostly Clear
Friday

High: 80 °F
Becoming
SunnyFriday Night

Low: 45 °F
Increasing
CloudsSaturday

High: 69 °F
Decreasing
CloudsSaturday Night

Low: 28 °F
Mostly Clear
Sunday

High: 70 °F
Sunny
Sunday Night

Low: 36 °F
Partly Cloudy
Monday

High: 73 °F
Partly Sunny
Monday Night

Low: 38 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 38. Calm wind.
Friday
Partly sunny during the morning, then sunny during the afternoon, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 45. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 69. Light north wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 28. North wind 12 to 17 mph becoming light after midnight. Winds could gust as high as 26 mph.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Sunny, with a high near 68.
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ABOUT THIS FORECAST
Point Forecast:
Montague CA
41.74°N 122.53°W (Elev. 2589 ft)
41.74°N 122.53°W (Elev. 2589 ft)
1:31 am PDT Mar 20, 2026
2am PDT Mar 20, 2026-6pm PDT Mar 26, 2026


