Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

52°F

11°C

Humidity 46%
Wind Speed S 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 Jan 04:35 PM PST
Extended Forecast for

Yreka CA

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Calm wind becoming northwest around 5 mph in the evening.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50. Calm wind.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. Calm wind becoming northwest around 5 mph in the evening.
Tuesday
Partly sunny, with a high near 50. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 26. Calm wind.
Wednesday
Mostly cloudy, with a high near 50. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 26. Calm wind.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 32.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 52.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Yreka CA
 41.75°N 122.62°W (Elev. 2726 ft)
3:41 pm PST Jan 19, 2026
4pm PST Jan 19, 2026-6pm PST Jan 26, 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