Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
27°F
-3°C
| Humidity | 78% |
| Wind Speed | S 13 mph |
| Barometer | 29.66 in (1005.3 mb) |
| Dewpoint | 21°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 16°F (-9°C) |
| Last update | 16 Jan 3:54 am CST |
Extended Forecast for
Decatur IL
Today
High: 40 °F
Chance Snow
Showers then
Mostly CloudyTonight
Low: 17 °F
Chance Snow
Showers then
Mostly CloudySaturday
High: 22 °F
Chance
FlurriesSaturday Night
Low: 9 °F
Chance
FlurriesSunday
High: 25 °F
Increasing
CloudsSunday Night
Low: 7 °F
Mostly Cloudy
then Partly
Cloudy and
BlusteryM.L.King Day
High: 16 °F
Mostly Sunny
and Blustery
then SunnyMonday Night
Low: 7 °F
Mostly Clear
Tuesday
High: 28 °F
Mostly Sunny
Detailed Forecast
Today
A 30 percent chance of snow showers, mainly before 9am. Mostly cloudy, with a high near 40. West wind 13 to 15 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of snow showers, mainly before 8pm. Mostly cloudy, with a low around 17. West northwest wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday
A chance of flurries. Partly sunny, with a high near 22. Wind chill values between 4 and 9. West wind 13 to 15 mph, with gusts as high as 26 mph.
Saturday Night
A chance of flurries before midnight. Partly cloudy, with a low around 9. Wind chill values between -4 and 6. West wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday
Increasing clouds, with a high near 25. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 7. Blustery, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 29 mph.
M.L.King Day
Mostly sunny, with a high near 16. Blustery, with a west northwest wind 13 to 20 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 7.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 35.
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)
3:36 am CST Jan 16, 2026
4am CST Jan 16, 2026-6pm CST Jan 22, 2026
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