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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

54°F

12°C

Humidity 90%
Wind Speed E 5 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 11 Oct 1:54 am CDT
Extended Forecast for

3 Miles SW Dewitt IL

  • Overnight

    Overnight: Mostly cloudy early, then becoming mostly clear, with a low around 55. East northeast wind 3 to 6 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 61. South wind 3 to 8 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Partly sunny, then gradually becoming sunny, with a high near 89. Southwest wind 8 to 17 mph, with gusts as high as 22 mph.

    High: 89 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 70. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Southwest wind 13 to 16 mph, with gusts as high as 20 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers likely after 1am. Partly cloudy, with a low around 64. Northwest wind around 7 mph becoming northeast after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 64 °F

    Mostly Clear
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy early, then becoming mostly clear, with a low around 55. East northeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 61. South wind 3 to 8 mph.
Columbus Day
Partly sunny, then gradually becoming sunny, with a high near 89. Southwest wind 8 to 17 mph, with gusts as high as 22 mph.
Monday Night
Clear, with a low around 70. South southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 88. Southwest wind 13 to 16 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely after 1am. Partly cloudy, with a low around 64. Northwest wind around 7 mph becoming northeast after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 65. Breezy.
Friday Night
Partly cloudy, with a low around 39. Breezy.
Saturday
Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Dewitt IL
 40.17°N 88.78°W (Elev. 699 ft)
Last Update:
1:26 am CDT Oct 11, 2026
Forecast Valid:
2am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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