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

78°F

26°C

Humidity 27%
Wind Speed NNE 8 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Heat Index78°F (26°C)
Last update 03 Aug 10:52 PM PDT
Extended Forecast for

7 Miles NW Illinois Valley OR

Heat Advisory August 4, 11:00am until August 6, 11:00pm
Red Flag Warning August 3, 11:20pm 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, 11:20pm until August 4, 09:00pm

    NOW until 9:00pm Tue

    Red Flag Warning

  • Tonight

    Low: 59 °F

    Patchy Smoke

  • Tuesday

    Tuesday: Patchy smoke before 1pm. Sunny, with a high near 85. North wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 85 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke after 8pm. Mostly clear, with a low around 63. Northwest wind 6 to 9 mph becoming northeast after midnight.

    Low: 63 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 84. North northeast wind 5 to 7 mph becoming light and variable.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62. West wind 5 to 9 mph becoming east northeast after midnight.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Tonight
Patchy smoke. Clear, with a low around 59. Northeast wind around 17 mph, with gusts as high as 28 mph.
Tuesday
Patchy smoke before 1pm. Sunny, with a high near 85. North wind 5 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Patchy smoke after 8pm. Mostly clear, with a low around 63. Northwest wind 6 to 9 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 84. North northeast wind 5 to 7 mph becoming light and variable.
Wednesday Night
Clear, with a low around 62. West wind 5 to 9 mph becoming east northeast after midnight.
Thursday
Sunny, with a high near 82.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 83.
Friday Night
Clear, with a low around 61.
Saturday
Sunny, with a high near 77.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 54.
Monday
Sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NW Illinois Valley OR
 42.16°N 123.79°W (Elev. 4560 ft)
11:15 pm PDT Aug 3, 2026
11pm PDT Aug 3, 2026-6pm PDT Aug 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database