Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Partly Cloudy
75°F
24°C
| Humidity | 62% |
| Wind Speed | S 14 G 24 mph |
| Barometer | 29.94 in (1013.5 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 3 Apr 6:54 pm CDT |
Extended Forecast for
2 Miles ENE Harristown IL
Tonight
Low: 57 °F
Chance
T-storms then
ShowersSaturday
High: 61 °F⇓
Showers then
Chance
ShowersSaturday Night

Low: 36 °F
Decreasing
CloudsSunday

High: 53 °F
Mostly Sunny
Sunday Night

Low: 38 °F
Mostly Clear
Monday

High: 56 °F
Sunny
Monday Night

Low: 30 °F
Partly Cloudy
Tuesday

High: 51 °F
Mostly Sunny
Tuesday Night

Low: 38 °F
Mostly Cloudy
Detailed Forecast
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 57. South wind 11 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm. Temperature falling to around 53 by 5pm. West wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West northwest wind 14 to 18 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 53. West northwest wind 14 to 16 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 38. West wind 7 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 56. Northwest wind 10 to 16 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 30. Northwest wind 11 to 13 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 68. Breezy.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A chance of showers. Partly sunny, with a high near 71. Breezy.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 53.
Friday
A chance of showers. Partly sunny, with a high near 72.
Additional Forecasts and Information
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ABOUT 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)
7:31 pm CDT Apr 3, 2026
7pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026



