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.

Overcast

31°F

-1°C

Humidity 96%
Wind Speed E 15 mph
Barometer 29.85 in (1011.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 26 Feb 4:54 am CST
Extended Forecast for

Long Creek IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 50. East northeast wind around 7 mph becoming west southwest in the afternoon.

    High: 50 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Clear, with a low around 32. South southwest wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 32 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65. Breezy, with a south southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 65 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 34. South southwest wind 8 to 13 mph becoming north northeast after midnight. Winds could gust as high as 22 mph.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 53. East northeast wind 8 to 14 mph, with gusts as high as 20 mph.

    High: 53 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 24. North northeast wind around 15 mph, with gusts as high as 23 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 36. East northeast wind around 15 mph, with gusts as high as 22 mph.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Rain and snow likely before midnight, then a chance of snow. Cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 50. East northeast wind around 7 mph becoming west southwest in the afternoon.
Tonight
Clear, with a low around 32. South southwest wind 6 to 8 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 65. Breezy, with a south southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 34. South southwest wind 8 to 13 mph becoming north northeast after midnight. Winds could gust as high as 22 mph.
Saturday
Partly sunny, with a high near 53. East northeast wind 8 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 24. North northeast wind around 15 mph, with gusts as high as 23 mph.
Sunday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 36. East northeast wind around 15 mph, with gusts as high as 22 mph.
Sunday Night
Rain and snow likely before midnight, then a chance of snow. Cloudy, with a low around 22. Chance of precipitation is 60%.
Monday
Mostly cloudy, with a high near 34.
Monday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 22.
Tuesday
A chance of rain. Cloudy, with a high near 38.
Tuesday Night
A chance of rain. Cloudy, with a low around 27.
Wednesday
A chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Creek IL
 39.82°N 88.86°W (Elev. 676 ft)
Last Update:
4:41 am CST Feb 26, 2026
Forecast Valid:
5am CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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