Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair and Breezy

29°F

-2°C

Humidity 54%
Wind Speed S 25 G 37 mph
Barometer 29.90 in (1013.3 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 24 Feb 9:54 am CST
Extended Forecast for

Macon IL

  • Today

    Today: Cloudy, with a high near 45. Breezy, with a south southwest wind 17 to 25 mph, with gusts as high as 37 mph.

    High: 45 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. South southwest wind 9 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. West northwest wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then rain likely between midnight and 3am, then snow likely after 3am.  Mostly cloudy, with a low around 29. East northeast wind 6 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow before 9am, then a chance of rain between 9am and noon.  Mostly cloudy, then gradually becoming sunny, with a high near 44. East northeast wind 9 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. North northwest wind 5 to 8 mph becoming calm.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. South southwest wind 8 to 16 mph, with gusts as high as 23 mph.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, with a high near 45. Breezy, with a south southwest wind 17 to 25 mph, with gusts as high as 37 mph.
Tonight
Mostly cloudy, with a low around 30. South southwest wind 9 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Mostly sunny, with a high near 45. West northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Wednesday Night
A chance of rain and snow before midnight, then rain likely between midnight and 3am, then snow likely after 3am. Mostly cloudy, with a low around 29. East northeast wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 9am, then a chance of rain between 9am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 44. East northeast wind 9 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 28. North northwest wind 5 to 8 mph becoming calm.
Friday
Sunny, with a high near 57. South southwest wind 8 to 16 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 35.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A chance of rain and snow. Partly sunny, with a high near 40.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 26.
Monday
A chance of rain and snow. Partly sunny, with a high near 41.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Macon IL
 39.71°N 89.01°W (Elev. 699 ft)
9:36 am CST Feb 24, 2026
10am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
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Additional Resources

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