Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

84°F

29°C

Humidity 21%
Wind Speed NNE 9 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Heat Index81°F (27°C)
Last update 03 Aug 08:52 PM PDT
Extended Forecast for

16 Miles NW Cave Junction OR

Heat Advisory August 4, 11:00am until August 6, 11:00pm
Red Flag Warning August 3, 09:55pm until August 4, 09:00pm
Red Flag Warning August 5, 02:00pm until August 5, 09:00pm
Click here for hazard details and duration
Heat Advisory
Red Flag Warning
Red Flag Warning
  •  
    Red Flag Warning August 3, 09:55pm until August 4, 09:00pm

    NOW until 9:00pm Tue

    Red Flag Warning

  • Tonight

    Low: 61 °F

    Areas Smoke

  • Tuesday

    Tuesday: Patchy smoke before 1pm. Sunny, with a high near 90. East wind 5 to 11 mph becoming west northwest in the afternoon.

    High: 90 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke. Mostly clear, with a low around 66. North northwest wind 6 to 8 mph becoming east after midnight.

    Low: 66 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 88. East wind 5 to 8 mph becoming calm.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65. West wind 5 to 9 mph becoming light and variable.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Areas of smoke after 11pm. Clear, with a low around 61. East wind around 11 mph, with gusts as high as 18 mph.
Tuesday
Patchy smoke before 1pm. Sunny, with a high near 90. East wind 5 to 11 mph becoming west northwest in the afternoon.
Tuesday Night
Patchy smoke. Mostly clear, with a low around 66. North northwest wind 6 to 8 mph becoming east after midnight.
Wednesday
Sunny, with a high near 88. East wind 5 to 8 mph becoming calm.
Wednesday Night
Clear, with a low around 65. West wind 5 to 9 mph becoming light and variable.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 64.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 80.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 75.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NW Cave Junction OR
 42.33°N 123.87°W (Elev. 3773 ft)
6:18 pm PDT Aug 3, 2026
9pm PDT Aug 3, 2026-6pm PDT Aug 10, 2026
 
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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