Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Centralia Municipal Airport (KENL)

Lat: 38.51°NLon: 89.09°WElev: 525ft.

Fair

70°F

21°C

Humidity 77%
Wind Speed NA
Barometer 30.03 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 30 Aug 11:15 pm CDT
Extended Forecast for

4 Miles S Keyesport IL

Heat Advisory August 31, 12:00pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind around 8 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Southwest wind 7 to 11 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South wind 7 to 9 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 3 to 6 mph.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 80. South wind 5 to 7 mph.

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind around 8 mph.
Monday
Sunny, with a high near 94. Southwest wind 7 to 11 mph.
Monday Night
Mostly clear, with a low around 78. South wind 7 to 9 mph.
Tuesday
Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 80. South wind 5 to 7 mph.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 80.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 79.
Friday
A 20 percent chance of showers before 1pm. Sunny, with a high near 95.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Keyesport IL
 38.68°N 89.26°W (Elev. 430 ft)
11:06 pm CDT Aug 30, 2026
11pm CDT Aug 30, 2026-6pm CDT Sep 6, 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