Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Mostly Cloudy
59°F
15°C
| Humidity | 90% |
| Wind Speed | S 12 mph |
| Barometer | 29.81 in (1009.6 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 2 Apr 6:54 am CDT |
Extended Forecast for
2 Miles ENE Harristown IL
Wind Advisory April 2, 10:00am until April 2, 07:00pm
Today
High: 73 °F
Chance
Showers and
Breezy then
T-storms and
WindyTonight
Low: 57 °F
Showers
Likely and
Breezy then
Chance
T-stormsFriday
High: 77 °F
Slight Chance
T-storms then
Showers
LikelyFriday Night

Low: 57 °F
Showers
Saturday

High: 62 °F
Showers
Likely and
BreezySaturday Night

Low: 36 °F
Partly Cloudy
Sunday

High: 53 °F
Mostly Sunny
Sunday Night

Low: 36 °F
Mostly Clear
Monday

High: 59 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 73. Windy, with a south wind 17 to 22 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 57. Breezy, with a south wind 21 to 26 mph becoming west 9 to 14 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Light and variable wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 57. South wind 14 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely before 1pm. Mostly cloudy, with a high near 62. Breezy, with a west wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Partly cloudy, with a low around 36. West northwest wind 14 to 17 mph, with gusts as high as 24 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 36.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 66. Breezy.
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)
6:42 am CDT Apr 2, 2026
7am CDT Apr 2, 2026-6pm CDT Apr 8, 2026



