National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

A Few Clouds

27°F

-3°C

Humidity 78%
Wind Speed W 3 mph
Barometer 29.90 in (1013.4 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 1 Jan 8:54 pm CST
Extended Forecast for

5 Miles ESE Moweaqua IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Calm wind becoming north northwest around 5 mph after midnight.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 34. North northeast wind 5 to 7 mph.

    High: 34 °F

    Partly Sunny

  • Friday Night

    Friday Night: Cloudy, with a low around 23. Northeast wind around 6 mph.

    Low: 23 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 35. Northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 35 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 20. Light north northwest wind.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 37. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 37 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29. South southeast wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. Calm wind becoming north northwest around 5 mph after midnight.
Friday
Partly sunny, with a high near 34. North northeast wind 5 to 7 mph.
Friday Night
Cloudy, with a low around 23. Northeast wind around 6 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 35. Northeast wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Mostly clear, with a low around 20. Light north northwest wind.
Sunday
Increasing clouds, with a high near 37. Calm wind becoming south southeast around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 29. South southeast wind 6 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A chance of rain. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Moweaqua IL
 39.6°N 88.93°W (Elev. 659 ft)
Last Update:
8:36 pm CST Jan 1, 2026
Forecast Valid:
8pm CST Jan 1, 2026-6pm CST Jan 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation