Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
42°F
6°C
| Humidity | 45% |
| Wind Speed | NW 5 mph |
| Barometer | 29.81 in (1010.0 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 25 Feb 7:54 pm CST |
Extended Forecast for
2 Miles ENE Harristown IL
Tonight
Low: 29 °F
Chance
Rain/Snow
then
Rain/Snow
LikelyThursday
High: 49 °F
Decreasing
CloudsThursday Night
Low: 33 °F
Clear
Friday
High: 65 °F
Sunny
Friday Night
Low: 34 °F
Mostly Clear
Saturday
High: 53 °F
Increasing
CloudsSaturday Night
Low: 25 °F
Partly Cloudy
Sunday
High: 37 °F
Mostly Cloudy
then Chance
SnowSunday Night
Low: 22 °F
Snow Likely
Detailed Forecast
Tonight
Rain and snow likely, becoming all snow after 1am, then gradually ending. Cloudy, with a low around 29. North wind 3 to 8 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 49. East northeast wind around 7 mph becoming west southwest in the afternoon.
Thursday Night
Clear, with a low around 33. South southwest wind 5 to 8 mph.
Friday
Sunny, with a high near 65. Southwest wind 9 to 17 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 34. South southwest wind 8 to 11 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Saturday
Increasing clouds, with a high near 53. Northeast wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 25. North northeast wind 14 to 16 mph, with gusts as high as 23 mph.
Sunday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 37.
Sunday Night
Snow likely, mainly before midnight. Cloudy, with a low around 22. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 34.
Monday Night
A chance of snow and freezing rain. Cloudy, with a low around 23.
Tuesday
A chance of rain. Mostly cloudy, with a high near 39.
Tuesday Night
A chance of rain. Partly cloudy, with a low around 28.
Wednesday
A chance of rain. Partly sunny, with a high near 45.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles ENE Harristown IL
39.84°N 89.03°W (Elev. 666 ft)
39.84°N 89.03°W (Elev. 666 ft)
8:36 pm CST Feb 25, 2026
8pm CST Feb 25, 2026-6pm CST Mar 4, 2026
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