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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

51°F

11°C

Humidity 77%
Wind Speed N 16 mph
Barometer 30.36 in (1028.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 16 Oct 8:54 pm CDT
Extended Forecast for

Decatur Airport IL

  • Tonight

    Tonight: Mostly clear, with a low around 36. North wind 10 to 16 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 59. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 59 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, clear, with a low around 34. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 66. South wind 5 to 8 mph.

    High: 66 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 36. South southeast wind around 5 mph becoming calm after midnight.

    Low: 36 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Light southeast wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. East wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 36. North wind 10 to 16 mph, with gusts as high as 25 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 59. North wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 34. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 66. South wind 5 to 8 mph.
Sunday Night
Clear, with a low around 36. South southeast wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 72. Light southeast wind.
Monday Night
Mostly clear, with a low around 39. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 44.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Decatur Airport IL
 39.86°N 88.88°W (Elev. 610 ft)
Last Update:
9:01 pm CDT Oct 16, 2026
Forecast Valid:
9pm CDT Oct 16, 2026-6pm CDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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