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.

Thunderstorm in Vicinity

69°F

21°C

Humidity 93%
Wind Speed E 5 mph
Barometer 29.93 in (1013.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Aug 10:54 pm CDT
Extended Forecast for

3 Miles S La Place IL

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am. Patchy fog after 1am. Low around 66. North northeast wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Northeast wind 5 to 7 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 63. Southwest wind 3 to 5 mph.

    Low: 63 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 82. Northwest wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Northwest wind 3 to 7 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms, mainly before 1am. Patchy fog after 1am. Low around 66. North northeast wind 3 to 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Northeast wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 63. Southwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 82. Northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Saturday Night
Mostly clear, with a low around 61. Northwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S La Place IL
 39.74°N 88.72°W (Elev. 673 ft)
Last Update:
10:36 pm CDT Aug 19, 2026
Forecast Valid:
11pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation