Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

75°F

24°C

Humidity 52%
Wind Speed E 3 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 24 Aug 3:54 pm CDT
Extended Forecast for

Wenonah IL

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Southeast wind around 5 mph becoming calm  in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. Calm wind.
Tuesday
Mostly sunny, with a high near 84. Southeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Partly cloudy, with a low around 64. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64. Calm wind.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Wenonah IL
 39.32°N 89.29°W (Elev. 673 ft)
2:01 pm CDT Aug 24, 2026
3pm CDT Aug 24, 2026-6pm CDT Aug 31, 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