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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

65°F

18°C

Humidity 84%
Wind Speed NE 5 mph
Barometer 30.09 in (1018.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 4 Aug 3:54 am CDT
Extended Forecast for

Long Creek IL

  • Today

    Today: A slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. East wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 63. East wind 5 to 7 mph.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. East wind around 6 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Light east southeast wind.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Light south southeast wind.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Light southeast wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. South southeast wind 3 to 6 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. East wind 6 to 9 mph. Chance of precipitation is 30%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 63. East wind 5 to 7 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. East wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 66. Light east southeast wind.
Wednesday
Mostly sunny, with a high near 85. Light south southeast wind.
Wednesday Night
Mostly clear, with a low around 66. Light southeast wind.
Thursday
Sunny, with a high near 87. South southeast wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 71.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Creek IL
 39.79°N 88.86°W (Elev. 699 ft)
Last Update:
4:40 am CDT Aug 4, 2025
Forecast Valid:
4am CDT Aug 4, 2025-6pm CDT Aug 10, 2025
 
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