Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fog/Mist
33°F
1°C
| Humidity | 92% |
| Wind Speed | E 7 mph |
| Barometer | 30.28 in (1026.0 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 6.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 24 Dec 6:54 am CST |
Extended Forecast for
Decatur Airport IL
Today
High: 54 °F
Chance
DrizzleTonight
Low: 46 °F
Chance
Drizzle and
Patchy FogChristmas Day
High: 55 °F
Patchy Fog
then Mostly
CloudyThursday Night
Low: 47 °F
Cloudy then
Chance RainFriday
High: 64 °F
Mostly Sunny
Friday Night
Low: 42 °F
Mostly Cloudy
Saturday
High: 63 °F
Mostly Cloudy
Saturday Night
Low: 40 °F
Mostly Cloudy
Sunday
High: 47 °F
Breezy.
Mostly Cloudy
then Chance
Rain
Detailed Forecast
Today
A chance of drizzle, mainly after 4pm. Mostly cloudy, with a high near 54. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Tonight
A chance of drizzle, mainly before midnight. Patchy fog after 9pm. Otherwise, cloudy, with a low around 46. South southeast wind 6 to 9 mph becoming north northwest after midnight.
Christmas Day
Patchy fog before 11am. Otherwise, cloudy, with a high near 55. North northwest wind 6 to 9 mph becoming east in the afternoon.
Thursday Night
A 30 percent chance of rain after midnight. Cloudy, with a low around 47. East wind 9 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.
Friday
Mostly sunny, with a high near 64. South wind 8 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 42. West northwest wind 5 to 7 mph becoming calm after midnight.
Saturday
Mostly cloudy, with a high near 63. Light east southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 47. Breezy.
Sunday Night
Partly cloudy, with a low around 13. Blustery.
Monday
Sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 29.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur Airport IL
39.84°N 88.88°W (Elev. 650 ft)
39.84°N 88.88°W (Elev. 650 ft)
6:36 am CST Dec 24, 2025
7am CST Dec 24, 2025-6pm CST Dec 30, 2025
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