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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Montague Siskiyou County Airport (KSIY)

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

Clear

59°F

15°C

Humidity 67%
Wind Speed N 11 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 02 Aug 06:35 AM PDT
Extended Forecast for

3 Miles SSW Fort Jones CA

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 48. Northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 48 °F

    Clear

  • Monday

    Monday: Patchy smoke after noon. Sunny, with a high near 92. Calm wind becoming north northeast 5 to 8 mph in the afternoon.

    High: 92 °F

    Sunny then
    Patchy Smoke

  • Monday Night

    Monday Night: Clear, with a low around 58. North northeast wind 5 to 7 mph becoming light and variable.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. Light and variable wind.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tonight
Clear, with a low around 48. Northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Monday
Patchy smoke after noon. Sunny, with a high near 92. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Monday Night
Clear, with a low around 58. North northeast wind 5 to 7 mph becoming light and variable.
Tuesday
Sunny and hot, with a high near 100. Light and variable wind.
Tuesday Night
Clear, with a low around 62.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
Clear, with a low around 62.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Clear, with a low around 61.
Friday
Sunny and hot, with a high near 97.
Friday Night
Clear, with a low around 59.
Saturday
Sunny and hot, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Fort Jones CA
 41.56°N 122.84°W (Elev. 2733 ft)
Last Update:
4:40 am PDT Aug 2, 2026
Forecast Valid:
6am PDT Aug 2, 2026-6pm PDT Aug 8, 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