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.

Fair

59°F

15°C

Humidity 36%
Wind Speed S 9 mph
Barometer 30.22 in (1023.5 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 20 Apr 5:54 pm CDT
Extended Forecast for

3 Miles E Long Creek IL

  • Tonight

    Tonight: Increasing clouds, with a low around 47. South wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 31 mph.

    High: 77 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. Southwest wind 13 to 16 mph, with gusts as high as 24 mph.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. West southwest wind around 11 mph, with gusts as high as 17 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. South wind around 9 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 80 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. South wind around 18 mph, with gusts as high as 28 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 47. South wind 7 to 14 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 77. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 31 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. Southwest wind 13 to 16 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 76. West southwest wind around 11 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 56. South wind around 9 mph.
Thursday
Mostly sunny, with a high near 80. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. South wind around 18 mph, with gusts as high as 28 mph.
Friday
Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 70.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 51.
Monday
A chance of showers. Mostly cloudy, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Long Creek IL
 39.79°N 88.8°W (Elev. 699 ft)
Last Update:
5:16 pm CDT Apr 20, 2026
Forecast Valid:
6pm CDT Apr 20, 2026-6pm CDT Apr 27, 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