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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Light Rain Fog/Mist and Breezy
59°F
15°C
| Humidity | 93% |
| Wind Speed | W 22 G 32 mph |
| Barometer | 29.96 in (1014.3 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 4.00 mi |
| Last update | 15 Oct 11:54 pm CDT |
Extended Forecast for
Clinton ILSimilar City Names
Overnight
Low: 47 °F
Chance
Showers and
BreezyFriday
High: 54 °F
Breezy.
Increasing
Clouds then
Chance
ShowersFriday Night
Low: 35 °F
Mostly Cloudy
and Breezy
then Mostly
ClearSaturday
High: 58 °F
Areas Frost
then SunnySaturday Night
Low: 36 °F
Clear then
Areas FrostSunday
High: 68 °F
Areas Frost
then SunnySunday Night
Low: 39 °F
Mostly Clear
Monday
High: 71 °F
Mostly Sunny
Monday Night
Low: 44 °F
Partly Cloudy
Detailed Forecast
Overnight
A 40 percent chance of showers before 1am. Cloudy, with a low around 47. Breezy, with a west northwest wind around 20 mph, with gusts as high as 30 mph.
Friday
A 40 percent chance of showers, mainly after 2pm. Increasing clouds, with a high near 54. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 33 mph.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 35. Breezy, with a north wind 11 to 21 mph, with gusts as high as 29 mph.
Saturday
Areas of frost before 9am. Otherwise, sunny, with a high near 58. North wind 5 to 7 mph becoming light and variable.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind becoming south around 6 mph after midnight.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 68. South wind 7 to 11 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 39. South wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 79.
Additional Forecasts and Information
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Point Forecast:
Clinton ILSimilar City Names
40.15°N 88.95°W (Elev. 715 ft)
40.15°N 88.95°W (Elev. 715 ft)
11:51 pm CDT Oct 15, 2026
12am CDT Oct 16, 2026-6pm CDT Oct 22, 2026
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