Heavy Precipitation in the West; Wintry Mix in the North; Fire Weather in the High Plains

Pacific moisture will continue to bring locally heavy coastal/lower elevation rain and heavy mountain snow to the West Coast and portions of the Intermountain West through Monday. A wintry mix will create hazardous travel across the northern Plains and Upper Midwest into early Monday. Dry, gusty winds are resulting in elevated to critical fire weather in the south/central High Plains. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Overcast

43°F

6°C

Humidity 70%
Wind Speed SSE 9 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 05 Jan 01:35 AM PST
Extended Forecast for

Montague CA

  • Overnight

    Overnight: Rain.  Patchy fog before 4am, then patchy fog after 5am. Snow level 4000 feet. Low around 33. North northeast wind 7 to 9 mph becoming northwest.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Rain, possibly mixed with snow before 1pm, then a chance of rain.  Patchy fog before 1pm. Snow level 3600 feet rising to 4300 feet in the afternoon. High near 43. Light and variable wind becoming north around 6 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow and
    Patchy Fog

  • Monday Night

    Monday Night: A 10 percent chance of rain before 10pm.  Patchy fog between 9pm and 11pm. Snow level 4600 feet.  Otherwise, mostly cloudy, with a low around 30. Light and variable wind.

    Low: 30 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 45. Light and variable wind.

    High: 45 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain.  Snow level 4600 feet. Mostly cloudy, with a low around 30. South southwest wind around 6 mph.

    Low: 30 °F

    Chance Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain.  Snow level 4100 feet. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 10pm, then a chance of rain and snow.  Snow level 3500 feet lowering to 2600 feet after midnight . Mostly cloudy, with a low around 25. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 25 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of snow before 10am.  Snow level rising to 3200 feet in the afternoon. Partly sunny, with a high near 42.

    High: 42 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain. Patchy fog before 4am, then patchy fog after 5am. Snow level 4000 feet. Low around 33. North northeast wind 7 to 9 mph becoming northwest. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, possibly mixed with snow before 1pm, then a chance of rain. Patchy fog before 1pm. Snow level 3600 feet rising to 4300 feet in the afternoon. High near 43. Light and variable wind becoming north around 6 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
A 10 percent chance of rain before 10pm. Patchy fog between 9pm and 11pm. Snow level 4600 feet. Otherwise, mostly cloudy, with a low around 30. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 45. Light and variable wind.
Tuesday Night
A 40 percent chance of rain. Snow level 4600 feet. Mostly cloudy, with a low around 30. South southwest wind around 6 mph.
Wednesday
A 40 percent chance of rain. Snow level 4100 feet. Mostly cloudy, with a high near 44.
Wednesday Night
A chance of rain before 10pm, then a chance of rain and snow. Snow level 3500 feet lowering to 2600 feet after midnight . Mostly cloudy, with a low around 25. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
A slight chance of snow before 10am. Snow level rising to 3200 feet in the afternoon. Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
Montague CA
 41.72°N 122.53°W (Elev. 2598 ft)
1:01 am PST Jan 5, 2026
1am PST Jan 5, 2026-6pm PST Jan 11, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database