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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
65°F
18°C
| Humidity | 84% |
| Wind Speed | SE 9 mph |
| Barometer | 30.06 in (1017.5 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 15 Oct 7:54 am CDT |
Extended Forecast for
3 Miles NNE Decatur IL
Today
High: 76 °F
Showers
Tonight
Low: 45 °F
Showers
Likely and
BreezyFriday
High: 55 °F
Breezy.
Partly Sunny
then Chance
ShowersFriday Night
Low: 36 °F
Decreasing
CloudsSaturday
High: 58 °F
Areas Frost
then SunnySaturday Night
Low: 34 °F
Clear then
Areas FrostSunday
High: 68 °F
Frost then
SunnySunday Night
Low: 37 °F
Mostly Clear
Monday
High: 73 °F
Mostly Sunny
Detailed Forecast
Today
A chance of showers, then showers and possibly a thunderstorm after 11am. High near 76. East wind 8 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 15 to 22 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers, mainly after 4pm. Partly sunny, with a high near 55. Breezy, with a northwest wind 21 to 23 mph, with gusts as high as 32 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. North wind 13 to 18 mph, with gusts as high as 24 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. North wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 34. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 68. South wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 76.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Decatur IL
39.88°N 88.91°W (Elev. 673 ft)
39.88°N 88.91°W (Elev. 673 ft)
7:36 am CDT Oct 15, 2026
8am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
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