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

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

34°F

1°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 Mar 06:35 AM PDT
Extended Forecast for

11 Miles NNW Yreka CA

  • Today

    Today: Sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 46. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45. West southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

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

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon.
Tonight
Clear, with a low around 46. West southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 84. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Wednesday Night
Clear, with a low around 45. West southwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Yreka CA
 41.86°N 122.75°W (Elev. 2001 ft)
Last Update:
4:41 am PDT Mar 17, 2026
Forecast Valid:
6am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation