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

Severe Weather Across the Center of the Nation; Fire Weather Concerns for Southwest and California; Snow for the Central Rockies

Severe thunderstorms will continue to impact the center of the Nation through today. Very large hail, strong tornadoes, and damaging winds are expected from the Great Lakes into the central/southern Plains; Flash flooding is possible for portions into the mid-Mississippi Valley. Critical fire weather conditions for the Southwest and central valley of California today. Winter hangs on for Rockies. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

66°F

19°C

Humidity 22%
Wind Speed N 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 18 May 01:20 PM PDT
Extended Forecast for

Montague CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 73. North wind 5 to 9 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. North wind 10 to 15 mph becoming light north northwest in the evening. Winds could gust as high as 28 mph.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. North wind 6 to 11 mph becoming light north northeast in the evening. Winds could gust as high as 26 mph.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 73. North wind 5 to 9 mph.
Tonight
Clear, with a low around 36. North wind 10 to 15 mph becoming light north northwest in the evening. Winds could gust as high as 28 mph.
Tuesday
Sunny, with a high near 78. Calm wind becoming north 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 42. North wind 6 to 11 mph becoming light north northeast in the evening. Winds could gust as high as 26 mph.
Wednesday
Sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
Last Update:
12:41 pm PDT May 18, 2026
Forecast Valid:
1pm PDT May 18, 2026-6pm PDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation