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

65°F

18°C

Humidity 66%
Wind Speed NNE 9 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 02 Aug 12:52 AM PDT
Extended Forecast for

Illinois Valley OR

  • Overnight

    Overnight: Mostly clear, with a low around 46. North wind 5 to 9 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. North northeast wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47. North northeast wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 47 °F

    Clear

  • Monday

    Monday: Patchy smoke after 4pm. Sunny, with a high near 93. North wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 93 °F

    Sunny then
    Patchy Smoke

  • Monday Night

    Monday Night: Clear, with a low around 56. Northeast wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 104.

    High: 104 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 46. North wind 5 to 9 mph.
Sunday
Sunny, with a high near 86. North northeast wind 6 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 47. North northeast wind 11 to 15 mph, with gusts as high as 23 mph.
Monday
Patchy smoke after 4pm. Sunny, with a high near 93. North wind 9 to 16 mph, with gusts as high as 24 mph.
Monday Night
Clear, with a low around 56. Northeast wind 6 to 14 mph, with gusts as high as 21 mph.
Tuesday
Sunny and hot, with a high near 104.
Tuesday Night
Clear, with a low around 61.
Wednesday
Sunny and hot, with a high near 102.
Wednesday Night
Clear, with a low around 59.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Clear, with a low around 59.
Friday
Sunny and hot, with a high near 98.
Friday Night
Clear, with a low around 57.
Saturday
Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.09°N 123.68°W (Elev. 1394 ft)
Last Update:
11:38 pm PDT Aug 1, 2026
Forecast Valid:
1am PDT Aug 2, 2026-6pm PDT Aug 8, 2026
 
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Additional Resources

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