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

69°F

21°C

Humidity 84%
Wind Speed SW 5 mph
Barometer 29.93 in (1013.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 May 12:54 am CDT
Extended Forecast for

3 Miles NNE Shelbyville IL

  • Overnight

    Overnight: Mostly clear, with a low around 62. Light south wind.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. Light south southwest wind.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 85. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 67. South wind around 7 mph, with gusts as high as 16 mph.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. South wind 9 to 18 mph, with gusts as high as 29 mph.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely before 7pm, then showers and thunderstorms likely between 7pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 62. Light south wind.
Sunday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. Light south southwest wind.
Sunday Night
Mostly clear, with a low around 64. Calm wind becoming south southeast around 5 mph after midnight.
Monday
Mostly sunny, with a high near 85. South wind 6 to 10 mph, with gusts as high as 20 mph.
Monday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 67. South wind around 7 mph, with gusts as high as 16 mph.
Tuesday
Mostly sunny, with a high near 86. South wind 9 to 18 mph, with gusts as high as 29 mph.
Tuesday Night
Showers likely before 7pm, then showers and thunderstorms likely between 7pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 54.
Thursday
Sunny, with a high near 77.
Thursday Night
A chance of showers. Partly cloudy, with a low around 58.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 77.
Friday Night
A chance of showers. Partly cloudy, with a low around 58.
Saturday
A chance of showers. Mostly sunny, with a high near 78.
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Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Shelbyville IL
 39.44°N 88.79°W (Elev. 673 ft)
Last Update:
12:42 am CDT May 19, 2024
Forecast Valid:
1am CDT May 19, 2024-6pm CDT May 25, 2024
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation