Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
59°F
15°C
| Humidity | 56% |
| Wind Speed | SW 15 mph |
| Barometer | 30.18 in (1021.8 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 9 Apr 7:54 am CDT |
Extended Forecast for
Decatur IL
Today
High: 78 °F
Mostly Sunny
Tonight
Low: 57 °F
Chance
T-stormsFriday
High: 64 °F
Showers
LikelyFriday Night
Low: 43 °F
Mostly Cloudy
Saturday
High: 67 °F
Partly Sunny
Saturday Night
Low: 58 °F
Mostly Cloudy
Sunday
High: 78 °F
Mostly Cloudy
then Mostly
Cloudy and
BreezySunday Night
Low: 63 °F
Showers
LikelyMonday
High: 81 °F
Chance
Showers then
Chance
T-storms
Detailed Forecast
Today
Mostly sunny, with a high near 78. Southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 57. South wind 11 to 16 mph, with gusts as high as 23 mph.
Friday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers after 1pm. Cloudy, with a high near 64. Southwest wind 9 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 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
Mostly cloudy, with a low around 43. East northeast wind around 8 mph, with gusts as high as 16 mph.
Saturday
Partly sunny, with a high near 67. Southeast wind around 10 mph, with gusts as high as 17 mph.
Saturday Night
Mostly cloudy, with a low around 58. Southeast wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 78. Breezy, with a south southwest wind 11 to 20 mph, with gusts as high as 32 mph.
Sunday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59.
Wednesday
A chance of showers. Mostly cloudy, with a high near 73.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.84°N 88.94°W (Elev. 692 ft)
39.84°N 88.94°W (Elev. 692 ft)
4:08 am CDT Apr 9, 2026
8am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
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