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

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

62°F

17°C

Humidity 70%
Wind Speed N 8 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 02 Aug 02:52 AM PDT
Extended Forecast for

17 Miles NE Happy Camp CA

  • Overnight

    Overnight: Partly cloudy, with a low around 49. Northwest wind around 9 mph.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 72. Light north wind increasing to 6 to 11 mph in the afternoon.

    High: 72 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 49. North wind 8 to 14 mph becoming east northeast after midnight. Winds could gust as high as 21 mph.

    Low: 49 °F

    Clear

  • Monday

    Monday: Patchy smoke after 3pm. Sunny, with a high near 81. East wind 6 to 10 mph becoming north in the afternoon.

    High: 81 °F

    Sunny then
    Patchy Smoke

  • Monday Night

    Monday Night: Clear, with a low around 59. East northeast wind 8 to 10 mph.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 49. Northwest wind around 9 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 72. Light north wind increasing to 6 to 11 mph in the afternoon.
Sunday Night
Clear, with a low around 49. North wind 8 to 14 mph becoming east northeast after midnight. Winds could gust as high as 21 mph.
Monday
Patchy smoke after 3pm. Sunny, with a high near 81. East wind 6 to 10 mph becoming north in the afternoon.
Monday Night
Clear, with a low around 59. East northeast wind 8 to 10 mph.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Clear, with a low around 67.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 66.
Thursday
Sunny, with a high near 88.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NE Happy Camp CA
 41.98°N 123.14°W (Elev. 4600 ft)
Last Update:
11:38 pm PDT Aug 1, 2026
Forecast Valid:
3am PDT Aug 2, 2026-6pm PDT Aug 8, 2026
 
Forecast Discussion
 
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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