Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Light Rain
43°F
6°C
| Humidity | 93% |
| Wind Speed | NE 14 mph |
| Barometer | 30.11 in (1019.8 mb) |
| Dewpoint | 41°F (5°C) |
| Visibility | 8.00 mi |
| Wind Chill | 36°F (2°C) |
| Last update | 1 Apr 9:54 am CDT |
Extended Forecast for
2 Miles ENE Harristown IL
Today
High: 56 °F
Showers
Tonight
Low: 52 °F
Showers
Likely then
Chance
T-stormsThursday
High: 74 °F
Chance
T-storms and
Breezy then
Showers and
WindyThursday Night
Low: 58 °F
Showers
Likely and
BreezyFriday
High: 77 °F
Partly Sunny
then Showers
LikelyFriday Night
Low: 54 °F
Showers
Saturday
High: 64 °F
Showers
Likely and
BreezySaturday Night
Low: 36 °F
Partly Cloudy
Sunday
High: 52 °F
Mostly Sunny
and Breezy
Detailed Forecast
Today
Showers and thunderstorms before 2pm, then a chance of showers between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 56. East northeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 4am, then a chance of showers after 4am. Cloudy, with a low around 52. East wind around 15 mph becoming south southeast after midnight. 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.
Thursday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 74. Windy, with a south wind 20 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 58. Breezy, with a southwest wind 18 to 23 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 77. South wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 54. South wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64. Breezy, with a south southwest wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 52. Breezy.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 55.
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)
6:32 am CDT Apr 1, 2026
10am CDT Apr 1, 2026-6pm CDT Apr 7, 2026
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