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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
67°F
19°C
| Humidity | 57% |
| Wind Speed | S 14 G 25 mph |
| Barometer | 29.60 in (1001.8 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 17 Jun 8:54 am CDT |
Extended Forecast for
Decatur IL
Tornado Watch until June 17, 03:00pm
Wind Advisory June 17, 01:00pm until June 17, 07:00pm
NOW until 3:00pm Wed
Tornado Watch
Today
High: 81 °F
Severe
Thunderstorms
and WindyTonight
Low: 62 °F
Heavy Rain
and Breezy
then Partly
CloudyThursday
High: 73 °F
Mostly Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Juneteenth
High: 78 °F
Sunny
Friday Night
Low: 60 °F
Mostly Clear
Saturday
High: 83 °F
Mostly Sunny
Saturday Night
Low: 64 °F
Partly Cloudy
then Chance
T-storms
Detailed Forecast
Today
Showers and thunderstorms, mainly before 1pm. Some of the storms could be severe and produce heavy rainfall. High near 81. Windy, with a south southeast wind 14 to 19 mph becoming north 27 to 32 mph. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and thunderstorms, mainly before 9pm. Some of the storms could produce heavy rainfall. Low around 62. Breezy, with a west southwest wind 11 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Mostly sunny, with a high near 73. West northwest wind around 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 56. West northwest wind 5 to 8 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 78. Northwest wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 83. West southwest wind around 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 80. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 63. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 79.
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)
9:11 am CDT Jun 17, 2026
9am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
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