Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

90°F

32°C

Humidity 68%
Wind Speed S 9 mph
Barometer 30.09 in (1018.0 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 16 Aug 10:54 am CDT
Extended Forecast for

4 Miles ESE Cisco IL

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

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Sunny and hot, with a high near 95. Heat index values as high as 109. Southwest wind around 9 mph.

    High: 95 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 73. South southwest wind 3 to 6 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 and hot, with a high near 95. Heat index values as high as 105. West southwest wind around 6 mph becoming north in the morning.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Light and variable wind becoming east around 5 mph in the evening.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. South southeast wind around 7 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 6 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. West wind 6 to 9 mph.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 95. Heat index values as high as 109. Southwest wind around 9 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 73. South southwest wind 3 to 6 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 105. West southwest wind around 6 mph becoming north in the morning.
Sunday Night
Mostly clear, with a low around 74. Light and variable wind becoming east around 5 mph in the evening.
Monday
Sunny and hot, with a high near 95. South southeast wind around 7 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 74. South southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 94. West wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 85.
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:
4 Miles ESE Cisco IL
 39.98°N 88.64°W (Elev. 666 ft)
10:41 am CDT Aug 16, 2025
11am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database