Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
36°F
2°C
| Humidity | 86% |
| Wind Speed | N 18 G 28 mph |
| Barometer | 30.15 in (1020.7 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 26°F (-3°C) |
| Last update | 27 Mar 3:54 am CDT |
Extended Forecast for
Decatur IL
Overnight
Low: 34 °F
Chance Rain
and BreezyFriday
High: 48 °F
Slight Chance
Rain then
SunnyFriday Night
Low: 27 °F
Mostly Clear
Saturday
High: 51 °F
Sunny
Saturday Night
Low: 40 °F
Increasing
CloudsSunday
High: 62 °F
Mostly Cloudy
Sunday Night
Low: 53 °F
Mostly Cloudy
Monday
High: 77 °F
Partly Sunny
Monday Night
Low: 62 °F
Chance
T-storms
Detailed Forecast
Overnight
A 50 percent chance of rain. Mostly cloudy, with a low around 34. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.
Friday
A 10 percent chance of rain before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 48. North wind 15 to 17 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 27. North northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 51. Light and variable wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
Increasing clouds, with a low around 40. South wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday
Mostly cloudy, with a high near 62. South wind 11 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 53. South wind around 11 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 77.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 81. Breezy.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 59.
Wednesday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 71.
Wednesday Night
Rain and thunderstorms likely. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 50.
Thursday
Rain and thunderstorms likely. Mostly cloudy, with a high near 62.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.84°N 88.94°W (Elev. 692 ft)
39.84°N 88.94°W (Elev. 692 ft)
3:03 am CDT Mar 27, 2026
4am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
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