
Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday
A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >
Current conditions at
Montague Siskiyou County Airport (KSIY)
Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.
Clear
55°F
13°C
| Humidity | 47% |
| Wind Speed | NE 6 MPH |
| Barometer | 30.03 in (1016.93 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 21 May 01:10 AM PDT |
Extended Forecast for
Montague CA
Overnight

Low: 45 °F
Mostly Clear
Thursday

High: 86 °F
Sunny
Thursday Night

Low: 50 °F
Mostly Clear
Friday

High: 88 °F
Sunny
Friday Night

Low: 51 °F
Mostly Clear
Saturday

High: 89 °F
Sunny
Saturday Night

Low: 52 °F
Mostly Clear
Sunday

High: 87 °F
Sunny
Sunday Night

Low: 50 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 45. Calm wind.
Thursday
Sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 50. North wind 5 to 10 mph becoming light north northeast in the evening.
Friday
Sunny, with a high near 88. Light and variable wind.
Friday Night
Mostly clear, with a low around 51. North northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 50.
Memorial Day
Mostly sunny, with a high near 78. Breezy.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 39. Windy.
Tuesday
A chance of rain. Snow level 5200 feet rising to 6200 feet in the afternoon. Mostly sunny, with a high near 65.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 38.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 70.
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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)
12:11 am PDT May 21, 2026
1am PDT May 21, 2026-6pm PDT May 27, 2026


