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

High: 70 °F
Sunny
Tonight
Low: 51 °F
Mostly Clear
then Chance
ShowersFriday
High: 76 °F
Showers
Likely then
Slight Chance
ShowersFriday Night

Low: 61 °F
Chance
ShowersSaturday

High: 80 °F
Showers
LikelySaturday Night

Low: 62 °F
Chance
T-stormsSunday

High: 82 °F
Mostly Sunny
Sunday Night

Low: 66 °F
Mostly Clear
Monday
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.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Shelbyville IL
39.44°N 88.79°W (Elev. 673 ft)
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


