Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
20°F
-7°C
| Humidity | 74% |
| Wind Speed | S 9 mph |
| Barometer | 30.14 in (1021.4 mb) |
| Dewpoint | 13°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 10°F (-12°C) |
| Last update | 24 Feb 4:54 am CST |
Extended Forecast for
2 Miles ENE Harristown IL
Today
High: 46 °F
Mostly Cloudy
and BreezyTonight
Low: 29 °F
Mostly Cloudy
Wednesday
High: 45 °F
Mostly Sunny
Wednesday Night
Low: 29 °F
Rain/Snow
LikelyThursday
High: 44 °F
Chance
Rain/Snow
then Mostly
SunnyThursday Night
Low: 28 °F
Mostly Clear
Friday
High: 57 °F
Sunny
Friday Night
Low: 35 °F
Mostly Clear
Saturday
High: 56 °F
Mostly Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 46. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph.
Tonight
Mostly cloudy, with a low around 29. South southwest wind 9 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 45. West northwest wind 7 to 11 mph, with gusts as high as 17 mph.
Wednesday Night
Rain and snow likely, becoming all snow after 3am. Mostly cloudy, with a low around 29. North wind 6 to 10 mph becoming east northeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
A chance of snow before 9am, then a chance of rain between 9am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 44. East northeast wind 8 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 28. North northwest wind 5 to 7 mph becoming light and variable.
Friday
Sunny, with a high near 57. South southwest wind 8 to 16 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 35.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A chance of rain and snow. Partly sunny, with a high near 40.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 26.
Monday
A chance of rain and snow. Partly sunny, with a high near 41.
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)
3:36 am CST Feb 24, 2026
5am CST Feb 24, 2026-6pm CST Mar 2, 2026
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