Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

78°F

26°C

Humidity 35%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index78°F (26°C)
Last update 22 Aug 10:52 AM PDT
Extended Forecast for

17 Miles WNW Illinois Valley OR

  • Today

    Today: Sunny, with a high near 60. Southwest wind 8 to 10 mph.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. West southwest wind 5 to 8 mph becoming east northeast after midnight.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 72. East northeast wind 7 to 9 mph.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. East northeast wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. East northeast wind 5 to 11 mph becoming west southwest in the afternoon.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 60. Southwest wind 8 to 10 mph.
Tonight
Mostly clear, with a low around 54. West southwest wind 5 to 8 mph becoming east northeast after midnight.
Sunday
Sunny, with a high near 72. East northeast wind 7 to 9 mph.
Sunday Night
Mostly clear, with a low around 61. East northeast wind 9 to 14 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 76. East northeast wind 5 to 11 mph becoming west southwest in the afternoon.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.18°N 123.98°W (Elev. 4344 ft)
10:40 am PDT Aug 22, 2026
11am PDT Aug 22, 2026-6pm PDT Aug 28, 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