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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

71°F

22°C

Humidity 39%
Wind Speed S 8 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 6 Oct 5:54 pm CDT
Extended Forecast for

5 Miles ESE Chestnut IL

  • Tonight

    Tonight: Mostly clear, with a low around 55. South wind 7 to 9 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Light northwest wind becoming north northwest 5 to 9 mph in the morning.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. North wind around 6 mph becoming light and variable.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. East wind 6 to 13 mph becoming south in the afternoon. Winds could gust as high as 16 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. South southeast wind 9 to 11 mph, with gusts as high as 17 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 55. South wind 7 to 9 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 84. Southwest wind 7 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 52. North northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77. Light northwest wind becoming north northwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 49. North wind around 6 mph becoming light and variable.
Friday
Sunny, with a high near 80. East wind 6 to 13 mph becoming south in the afternoon. Winds could gust as high as 16 mph.
Friday Night
Mostly clear, with a low around 57. South southeast wind 9 to 11 mph, with gusts as high as 17 mph.
Saturday
Sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 57.
Columbus Day
Mostly sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Chestnut IL
 40.02°N 89.13°W (Elev. 620 ft)
Last Update:
4:36 pm CDT Oct 6, 2026
Forecast Valid:
6pm CDT Oct 6, 2026-6pm CDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation