Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
51°F
11°C
| Humidity | 41% |
| Wind Speed | NW 10 mph |
| Barometer | 30.30 in (1026.1 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 47°F (8°C) |
| Last update | 6 Apr 9:54 pm CDT |
Extended Forecast for
Decatur IL
Tonight

Low: 34 °F
Mostly Cloudy
Tuesday
High: 47 °F
Slight Chance
Snow then
Partly SunnyTuesday Night

Low: 37 °F
Mostly Cloudy
Wednesday

High: 68 °F
Partly Sunny
Wednesday Night

Low: 53 °F
Partly Cloudy
Thursday

High: 72 °F
Mostly Sunny
Thursday Night

Low: 55 °F
Chance
ShowersFriday

High: 68 °F
Showers
LikelyFriday Night

Low: 48 °F
Chance
Showers
Detailed Forecast
Tonight
Mostly cloudy, with a low around 34. North wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of snow before 8am. Mostly cloudy, with a high near 47. East wind 9 to 11 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 37. East southeast wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Partly sunny, with a high near 68. South wind 11 to 17 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 53. South wind around 14 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 72. South southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 55. South wind around 10 mph, with gusts as high as 17 mph.
Friday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
A chance of showers. Mostly cloudy, with a high near 80.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 64.
Monday
Showers likely. Mostly cloudy, with a high near 79. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.84°N 88.94°W (Elev. 692 ft)
39.84°N 88.94°W (Elev. 692 ft)
9:37 pm CDT Apr 6, 2026
10pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026



