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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Mostly Cloudy

66°F

19°C

Humidity 60%
Wind Speed ENE 3 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 03 Sep 05:53 AM PDT
Extended Forecast for

4 Miles N Fort Jones CA

  • Today

    Today: 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 89. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind becoming north around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. South southwest wind around 6 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.

    High: 85 °F

    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
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 89. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 60. Calm wind becoming north around 6 mph.
Thursday
Sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. South southwest wind around 6 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
A slight chance of showers after 11pm. Partly cloudy, with a low around 57.
Monday
A chance of showers. Mostly sunny, with a high near 75.
Monday Night
A chance of showers. Partly cloudy, with a low around 56.
Tuesday
A chance of showers. Partly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Fort Jones CA
 41.67°N 122.84°W (Elev. 3314 ft)
Last Update:
4:41 am PDT Sep 3, 2025
Forecast Valid:
6am PDT Sep 3, 2025-6pm PDT Sep 9, 2025
 
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Additional Resources

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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