Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fog/Mist
49°F
9°C
| Humidity | 100% |
| Wind Speed | NE 6 mph |
| Barometer | 29.99 in (1015.9 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 3.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 4 Mar 4:54 pm CST |
Extended Forecast for
2 Miles ENE Harristown IL
This Afternoon
High: 54 °F
Chance
Showers and
Patchy FogTonight
Low: 49 °F
Chance
T-storms and
Patchy Fog
then Showers
and Areas FogThursday
High: 62 °F
Showers and
Patchy Fog
then Mostly
CloudyThursday Night
Low: 51 °F
Mostly Cloudy
then Showers
LikelyFriday
High: 76 °F
Breezy.
Chance
T-storms then
Chance
ShowersFriday Night
Low: 55 °F
Breezy.
Chance
T-storms then
ShowersSaturday
High: 63 °F
Chance
Showers then
Mostly CloudySaturday Night
Low: 38 °F
Partly Cloudy
Sunday
High: 61 °F
Sunny
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a high near 54. East northeast wind around 5 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Patchy fog. Low around 49. Light and variable wind becoming east southeast around 6 mph in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm before 10am, then a slight chance of showers between 10am and noon. Patchy fog before noon. High near 62. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Mostly cloudy, with a low around 51. Calm wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 76. Breezy, with a south wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 55. Breezy, with a south wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 50 percent chance of showers before noon. Mostly cloudy, with a high near 63. Southwest wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 73.
Monday Night
A chance of rain and thunderstorms. Mostly clear, with a low around 58.
Tuesday
Rain. Mostly cloudy, with a high near 72. Breezy.
Tuesday Night
Rain. Mostly cloudy, with a low around 44. Breezy.
Wednesday
Rain likely. Mostly cloudy, with a high near 53. Breezy.
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)
5:36 pm CST Mar 4, 2026
5pm CST Mar 4, 2026-6pm CDT Mar 11, 2026
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