Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

79°F

26°C

Humidity 82%
Wind Speed S 5 mph
Barometer 30.10 in (1018.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 16 Aug 3:54 am CDT
Extended Forecast for

3 Miles NNE Dalton City IL

Heat Advisory August 16, 12:00pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm.  Sunny, with a high near 94. Heat index values as high as 103. Southwest wind 6 to 8 mph.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 73. South wind 3 to 5 mph.

    Low: 73 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 94. Heat index values as high as 105. Light and variable wind becoming west southwest around 5 mph in the morning.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Light and variable wind.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. South southeast wind around 6 mph becoming southwest in the afternoon.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. South southwest wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. West wind 5 to 8 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 94. Heat index values as high as 103. Southwest wind 6 to 8 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. South wind 3 to 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Light and variable wind becoming west southwest around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. Light and variable wind.
Monday
Sunny and hot, with a high near 95. South southeast wind around 6 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 74. South southwest wind around 5 mph.
Tuesday
Sunny, with a high near 94. West wind 5 to 8 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Dalton City IL
 39.75°N 88.77°W (Elev. 712 ft)
3:41 am CDT Aug 16, 2025
4am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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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