Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
35°F
2°C
| Humidity | 50% |
| Wind Speed | W 16 G 28 mph |
| Barometer | 30.34 in (1028.1 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 25°F (-4°C) |
| Last update | 27 Nov 11:54 am CST |
Extended Forecast for
Decatur IL
Winter Storm Watch November 29, 12:00am until November 30, 06:00am
Thanksgiving Day
High: 38 °F
Sunny
Tonight
Low: 20 °F
Clear
Friday
High: 33 °F
Sunny
Friday Night
Low: 24 °F
Mostly Cloudy
then Chance
SnowSaturday
High: 35 °F
Snow then
Rain/SnowSaturday Night
Low: 24 °F
Rain/Snow
then Chance
Rain/SnowSunday
High: 30 °F
Chance Snow
then Mostly
CloudySunday Night
Low: 11 °F
Mostly Cloudy
Monday
High: 21 °F
Mostly Cloudy
Detailed Forecast
Thanksgiving Day
Sunny, with a high near 38. West northwest wind 11 to 15 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 20. West northwest wind 7 to 10 mph, with gusts as high as 16 mph.
Friday
Sunny, with a high near 33. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Friday Night
A 50 percent chance of snow after midnight. Mostly cloudy, with a low around 24. Light south wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 15 mph.
Saturday
Snow before 3pm, then rain and snow. High near 35. Southeast wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Rain and snow before midnight, then a chance of snow between midnight and 3am, then a chance of rain and snow after 3am. Low around 24. South southeast wind around 15 mph becoming west northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 30. West northwest wind 11 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Mostly cloudy, with a high near 21.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Partly sunny, with a high near 25.
Tuesday Night
Partly cloudy, with a low around 12.
Wednesday
Partly sunny, with a high near 33.
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)
11:16 am CST Nov 27, 2025
12pm CST Nov 27, 2025-6pm CST Dec 3, 2025
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