Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Light Rain and Breezy

62°F

17°C

Humidity 86%
Wind Speed SW 23 G 43 mph
Barometer 29.52 in (999.4 mb)
Dewpoint 58°F (14°C)
Visibility 8.00 mi
Last update 8 Jan 8:54 pm CST
Extended Forecast for

5 Miles SE Macon IL

  • Tonight

    Tonight: Rain and thunderstorms before 3am, then a slight chance of rain between 3am and 5am.  Low around 43. Breezy, with a south southwest wind 20 to 26 mph, with gusts as high as 38 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Breezy. Rain
    then Chance
    Rain

  • Friday

    Friday: Mostly cloudy, with a high near 50. Breezy, with a west wind 15 to 20 mph becoming north northwest 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 50 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. East northeast wind 3 to 5 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain before noon.  Partly sunny, with a high near 42. West northwest wind 6 to 16 mph, with gusts as high as 23 mph.

    High: 42 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. West northwest wind 14 to 18 mph, with gusts as high as 26 mph.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 31. West northwest wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 31 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. West wind 6 to 9 mph becoming south southwest after midnight. Winds could gust as high as 16 mph.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and thunderstorms before 3am, then a slight chance of rain between 3am and 5am. Low around 43. Breezy, with a south southwest wind 20 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Mostly cloudy, with a high near 50. Breezy, with a west wind 15 to 20 mph becoming north northwest 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 36. East northeast wind 3 to 5 mph.
Saturday
A 30 percent chance of rain before noon. Partly sunny, with a high near 42. West northwest wind 6 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 20. West northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 31. West northwest wind 8 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 22. West wind 6 to 9 mph becoming south southwest after midnight. Winds could gust as high as 16 mph.
Monday
Sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Macon IL
 39.66°N 88.95°W (Elev. 650 ft)
8:38 pm CST Jan 8, 2026
9pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database