Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Light Rain Fog/Mist
49°F
9°C
| Humidity | 100% |
| Wind Speed | E 6 mph |
| Barometer | 30.00 in (1016.3 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 1.50 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 4 Mar 3:54 pm CST |
Extended Forecast for
4 Miles WSW Sullivan IL
This Afternoon
High: 55 °F
Chance
T-storms and
Patchy FogTonight
Low: 51 °F
Showers and
Patchy FogThursday
High: 63 °F
Showers and
Patchy Fog
then Slight
Chance
ShowersThursday Night
Low: 52 °F
Mostly Cloudy
then Showers
LikelyFriday
High: 74 °F
Chance
T-storms then
Chance
ShowersFriday Night
Low: 55 °F
Chance
T-storms then
ShowersSaturday
High: 63 °F
Showers
Likely then
Mostly CloudySaturday Night
Low: 38 °F
Partly Cloudy
Sunday
High: 60 °F
Sunny
Detailed Forecast
This Afternoon
A 50 percent chance of showers and thunderstorms. Patchy fog. Otherwise, cloudy, with a high near 55. Light east southeast wind.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Patchy fog. Low around 51. Light and variable wind becoming south southwest 5 to 7 mph after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm. Patchy fog before 11am. High near 63. South wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 17 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 after midnight. Mostly cloudy, with a low around 52. Calm wind becoming south southeast 5 to 7 mph after midnight. 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 74. South wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
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. South wind 13 to 16 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
Showers likely before noon. Mostly cloudy, with a high near 63. Southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 72.
Monday Night
A chance of rain and thunderstorms. Partly cloudy, with a low around 58.
Tuesday
Rain. Mostly cloudy, with a high near 72.
Tuesday Night
Rain. Mostly cloudy, with a low around 45.
Wednesday
Rain likely. Mostly cloudy, with a high near 55.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles WSW Sullivan IL
39.57°N 88.67°W (Elev. 676 ft)
39.57°N 88.67°W (Elev. 676 ft)
3:37 pm CST Mar 4, 2026
4pm CST Mar 4, 2026-6pm CDT Mar 11, 2026
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