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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Partly Cloudy

36°F

2°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Nov 12:20 AM PST
Extended Forecast for

Yreka CA

  • Overnight

    Overnight: Areas of fog after 5am. Otherwise, partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Areas Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after 4pm. Snow level 5500 feet rising to 6500 feet in the afternoon. Mostly sunny, with a high near 54. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 54 °F

    Mostly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm. Snow level 6300 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 38. South wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain. Snow level 5300 feet. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of fog after 5am. Otherwise, partly cloudy, with a low around 36. Calm wind.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 53. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 30. Calm wind.
Wednesday
A 30 percent chance of rain after 4pm. Snow level 5500 feet rising to 6500 feet in the afternoon. Mostly sunny, with a high near 54. Calm wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
Rain likely, mainly after 10pm. Snow level 6300 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 38. South wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 40 percent chance of rain. Snow level 5300 feet. Partly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 35.
Monday
A chance of rain. Snow level 5300 feet. Partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
Last Update:
9:41 pm PST Nov 17, 2025
Forecast Valid:
12am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation