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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

60°F

16°C

Humidity 70%
Wind Speed SW 10 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 16 Jun 4:54 am CDT
Extended Forecast for

3 Miles NNE Decatur IL

  • Today

    Today: Showers and thunderstorms, mainly before 4pm. High near 76. Southwest wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 54. West northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 21 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 5pm. Partly sunny, with a high near 82. Breezy, with a south southeast wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    T-storms
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 10pm, then showers between 10pm and 1am. Low around 64. Breezy, with a west southwest wind 14 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    T-storms and
    Breezy then
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 74. West northwest wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Northwest wind 5 to 9 mph becoming light west northwest.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 77. Northwest wind 5 to 11 mph, with gusts as high as 16 mph.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm. High near 76. Southwest wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Partly cloudy, with a low around 54. West northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 21 mph.
Wednesday
Showers and thunderstorms likely, mainly before 5pm. Partly sunny, with a high near 82. Breezy, with a south southeast wind 8 to 13 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms before 10pm, then showers between 10pm and 1am. Low around 64. Breezy, with a west southwest wind 14 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Mostly sunny, with a high near 74. West northwest wind 13 to 15 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 56. Northwest wind 5 to 9 mph becoming light west northwest.
Juneteenth
Sunny, with a high near 77. Northwest wind 5 to 11 mph, with gusts as high as 16 mph.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81.
Sunday Night
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 65.
Monday
A chance of showers. Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Decatur IL
 39.88°N 88.91°W (Elev. 673 ft)
Last Update:
4:46 am CDT Jun 16, 2026
Forecast Valid:
5am CDT Jun 16, 2026-6pm CDT Jun 22, 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