Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
44°F
7°C
| Humidity | 76% |
| Wind Speed | NW 16 G 28 mph |
| Barometer | 30.02 in (1016.5 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 37°F (3°C) |
| Last update | 9 Jan 9:54 am CST |
Extended Forecast for
Decatur Airport IL
Today
High: 48 °F
Mostly Cloudy
Tonight
Low: 37 °F
Mostly Cloudy
then Slight
Chance RainSaturday
High: 43 °F
Chance Rain
Saturday Night
Low: 21 °F
Partly Cloudy
then Mostly
Cloudy and
BlusterySunday
High: 33 °F
Mostly Sunny
and Breezy
then SunnySunday Night
Low: 24 °F
Mostly Clear
Monday
High: 44 °F
Sunny
Monday Night
Low: 34 °F
Partly Cloudy
Tuesday
High: 50 °F
Mostly Cloudy
Detailed Forecast
Today
Mostly cloudy, with a high near 48. West northwest wind 6 to 16 mph becoming north northeast in the afternoon. Winds could gust as high as 26 mph.
Tonight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 37. Northeast wind around 5 mph becoming light and variable.
Saturday
A 30 percent chance of rain, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 43. West northwest wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 21. Blustery, with a west northwest wind 14 to 20 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 33. Breezy, with a west northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Mostly clear, with a low around 24. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 44. Southwest wind 10 to 15 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly cloudy, with a high near 50.
Tuesday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 34.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 33.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur Airport IL
39.84°N 88.85°W (Elev. 686 ft)
39.84°N 88.85°W (Elev. 686 ft)
9:37 am CST Jan 9, 2026
10am CST Jan 9, 2026-6pm CST Jan 15, 2026
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