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

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

86°F

30°C

Humidity 55%
Wind Speed NW 3 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 21 Aug 5:54 pm CDT
Extended Forecast for

Fieldon IL

  • Tonight

    Tonight: Mostly clear, with a low around 68. Light southwest wind.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Northwest wind 5 to 9 mph.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. North wind 3 to 7 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Calm wind becoming north around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 61. Light and variable wind.

    Low: 61 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Light southwest wind.
Saturday
Sunny, with a high near 86. Northwest wind 5 to 9 mph.
Saturday Night
Mostly clear, with a low around 62. North wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 61. Light and variable wind.
Monday
Partly sunny, with a high near 80.
Monday Night
Mostly cloudy, with a low around 64.
Tuesday
Partly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Fieldon IL
 39.11°N 90.49°W (Elev. 640 ft)
5:51 pm CDT Aug 21, 2026
6pm CDT Aug 21, 2026-6pm CDT Aug 28, 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