Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
26°F
-3°C
| Humidity | 84% |
| Wind Speed | NE 6 mph |
| Barometer | 30.64 in (1038.1 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 19°F (-7°C) |
| Last update | 28 Mar 6:54 am CDT |
Extended Forecast for
2 Miles ENE Harristown IL
Today
High: 51 °F
Sunny
Tonight
Low: 38 °F
Increasing
CloudsSunday
High: 64 °F
Partly Sunny
Sunday Night
Low: 53 °F
Partly Cloudy
Monday
High: 78 °F
Mostly Sunny
then Mostly
Sunny and
BreezyMonday Night
Low: 63 °F
Partly Cloudy
and BreezyTuesday
High: 80 °F
Breezy.
Chance
Showers then
Showers
LikelyTuesday Night
Low: 43 °F
Rain
Wednesday
High: 54 °F
Chance Rain
Detailed Forecast
Today
Sunny, with a high near 51. North northeast wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 17 mph.
Tonight
Increasing clouds, with a low around 38. South wind 9 to 11 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 64. South wind 11 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 53. South wind around 14 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 78. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 63. Breezy, with a south wind 18 to 22 mph, with gusts as high as 30 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. Breezy, with a southwest wind 21 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain and possibly a thunderstorm. Low around 43. Chance of precipitation is 90%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 54.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Mostly cloudy, with a high near 53.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 41.
Friday
A chance of rain. Partly sunny, with a high near 64.
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)
1:27 am CDT Mar 28, 2026
7am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
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