Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

43°F

6°C

Humidity 82%
Wind Speed Calm
Barometer 30.10 in (1019.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 14 May 3:54 am CDT
Extended Forecast for

3 Miles NNE Shelbyville IL

  • Today

    Today: Sunny, with a high near 70. Light south wind.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am.  Increasing clouds, with a low around 51. South southeast wind 5 to 8 mph, with gusts as high as 16 mph.  Chance of precipitation is 50%.

    Low: 51 °F

    Mostly Clear
    then Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely before noon, then a slight chance of showers between noon and 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 76. South southeast wind 11 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers.  Partly cloudy during the early evening, then becoming cloudy, with a low around 61. South wind around 9 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 80. South southwest wind 10 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 62. South wind 6 to 8 mph.  Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 82. South wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 85. Breezy.

    High: 85 °F

    Breezy. Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 70. Light south wind.
Tonight
A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 51. South southeast wind 5 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.
Friday
Showers and thunderstorms likely before noon, then a slight chance of showers between noon and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. South southeast wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 30 percent chance of showers. Partly cloudy during the early evening, then becoming cloudy, with a low around 61. South wind around 9 mph, with gusts as high as 20 mph.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. South southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. South wind 6 to 8 mph. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 82. South wind 7 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 66.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Breezy.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61.
Wednesday
A chance of showers. Mostly cloudy, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Shelbyville IL
 39.44°N 88.79°W (Elev. 673 ft)
3:36 am CDT May 14, 2026
4am CDT May 14, 2026-6pm CDT May 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database