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.

Partly Cloudy

42°F

6°C

Humidity 85%
Wind Speed SE 7 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 9 Jan 7:54 pm CST
Extended Forecast for

3 Miles N Shelbyville IL

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain before noon, then a slight chance of showers after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 42. Light west wind becoming west northwest 11 to 16 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 40%.

    High: 42 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Northwest wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 23. South southwest wind 5 to 9 mph, with gusts as high as 16 mph.

    Low: 23 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 37. Light and variable wind.
Saturday
A chance of rain before noon, then a slight chance of showers after 3pm. Cloudy through mid morning, then gradual clearing, with a high near 42. Light west wind becoming west northwest 11 to 16 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 22. West northwest wind 10 to 18 mph, with gusts as high as 29 mph.
Sunday
Mostly sunny, with a high near 33. Northwest wind 13 to 18 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
Mostly clear, with a low around 23. South southwest wind 5 to 9 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 44. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 31. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
Mostly cloudy, with a low around 21.
Friday
Mostly cloudy, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Shelbyville IL
 39.46°N 88.82°W (Elev. 686 ft)
Last Update:
6:36 pm CST Jan 9, 2026
Forecast Valid:
8pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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