National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

90°F

32°C

Humidity 59%
Wind Speed SW 12 mph
Barometer 30.10 in (1018.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 22 Jun 11:54 am CDT
Extended Forecast for

3 Miles SW Dewitt IL

Heat Advisory June 22, 12:24pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 22, 12:24pm until June 24, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 75. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Heat index values as high as 102. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South southwest wind 8 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. Southwest wind around 8 mph.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74. South southwest wind around 7 mph.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind 6 to 10 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 95. Heat index values as high as 105. South southwest wind 14 to 16 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 75. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
Sunny and hot, with a high near 95. Heat index values as high as 102. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 75. South southwest wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 92. Southwest wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 74. South southwest wind around 7 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Southwest wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Dewitt IL
 40.17°N 88.78°W (Elev. 699 ft)
Last Update:
11:41 am CDT Jun 22, 2025
Forecast Valid:
12pm CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation