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

97°F

36°C

Humidity 15%
Wind Speed NE 7 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index93°F (34°C)
Last update 03 Aug 04:52 PM PDT
Extended Forecast for

9 Miles WNW Cave Junction OR

Heat Advisory August 4, 11:00am until August 6, 11:00pm
Red Flag Warning August 3, 05:44pm 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, 05:44pm until August 4, 09:00pm

    NOW until 9:00pm Tue

    Red Flag Warning

  • Tonight

    Low: 60 °F

    Patchy Smoke

  • Tuesday

    Tuesday: Patchy smoke before 1pm. Sunny, with a high near 89. East northeast wind 5 to 8 mph becoming light and variable.

    High: 89 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke after 8pm. Mostly clear, with a low around 65. North northwest wind around 7 mph becoming east northeast after midnight.

    Low: 65 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64. West wind 5 to 9 mph becoming light and variable  in the evening.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Patchy smoke after 11pm. Clear, with a low around 60. East northeast wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
Patchy smoke before 1pm. Sunny, with a high near 89. East northeast wind 5 to 8 mph becoming light and variable.
Tuesday Night
Patchy smoke after 8pm. Mostly clear, with a low around 65. North northwest wind around 7 mph becoming east northeast after midnight.
Wednesday
Sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 64. West wind 5 to 9 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 81.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 77.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Cave Junction OR
 42.21°N 123.8°W (Elev. 3862 ft)
4:40 pm PDT Aug 3, 2026
5pm 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