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

Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Rain

72°F

22°C

Humidity 43%
Wind Speed NNE 4 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 03 Sep 01:35 AM PDT
Extended Forecast for

6 Miles SW Yreka CA

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph.

    Low: 64 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Areas of smoke after 2pm. Mostly sunny, with a high near 83. West southwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Light and variable wind becoming west 5 to 7 mph after midnight.

    Low: 64 °F

    Mostly Clear

  • Thursday

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

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. South southwest wind 5 to 7 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph.
Wednesday
A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Areas of smoke after 2pm. Mostly sunny, with a high near 83. West southwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 64. Light and variable wind becoming west 5 to 7 mph after midnight.
Thursday
Mostly sunny, with a high near 85. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 62. South southwest wind 5 to 7 mph.
Friday
A 20 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 80.
Friday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 58.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 55.
Monday
A chance of showers. Mostly sunny, with a high near 68.
Monday Night
A chance of showers. Partly cloudy, with a low around 53.
Tuesday
A chance of showers. Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Yreka CA
 41.68°N 122.73°W (Elev. 4199 ft)
Last Update:
1:40 am PDT Sep 3, 2025
Forecast Valid:
1am PDT Sep 3, 2025-6pm PDT Sep 9, 2025
 
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