Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Partly Cloudy
14°F
-10°C
| Humidity | 64% |
| Wind Speed | W 14 G 25 mph |
| Barometer | 30.11 in (1020.6 mb) |
| Dewpoint | 4°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | -1°F (-18°C) |
| Last update | 17 Mar 2:54 am CDT |
Extended Forecast for
2 Miles ENE Harristown IL
Overnight
Low: 13 °F
Chance
FlurriesTuesday
High: 29 °F
Partly Sunny
Tuesday Night
Low: 25 °F
Snow
Wednesday
High: 54 °F
Chance Snow
then SunnyWednesday Night
Low: 36 °F
Mostly Cloudy
Thursday
High: 63 °F
Decreasing
CloudsThursday Night
Low: 42 °F
Partly Cloudy
Friday
High: 70 °F
Mostly Sunny
Friday Night
Low: 46 °F
Mostly Cloudy
Detailed Forecast
Overnight
A chance of flurries. Mostly cloudy, with a low around 13. Wind chill values between -1 and 4. West northwest wind around 17 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 29. Wind chill values between -3 and 7. West northwest wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Snow, mainly after 11pm. Low around 25. South wind 7 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 54. South wind 11 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 36. West wind around 6 mph becoming south after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 63. South wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 42. North northeast wind around 6 mph becoming south southeast after midnight.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 52.
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)
1:56 am CDT Mar 17, 2026
3am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
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