Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

38°F

3°C

Humidity 60%
Wind Speed W 13 G 35 mph
Barometer 29.96 in (1014.9 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 26 Nov 4:54 am CST
Extended Forecast for

2 Miles WNW Decatur IL

Wind Advisory until November 26, 06:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until November 26, 06:00pm

    NOW until 6:00pm Wed

    Wind Advisory

  • Overnight

    Low: 34 °F

    Cloudy and
    Breezy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 39. Breezy, with a west wind 21 to 28 mph, with gusts as high as 45 mph.

    High: 39 °F

    Gradual
    Clearing and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23. West northwest wind 14 to 18 mph, with gusts as high as 33 mph.

    Low: 23 °F

    Mostly Clear

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 38. West northwest wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 38 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18. West northwest wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 34. West northwest wind around 6 mph becoming calm  in the afternoon.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: Snow likely after midnight.  Mostly cloudy, with a low around 25. Light south southeast wind becoming southeast 8 to 13 mph in the evening. Winds could gust as high as 17 mph.  Chance of precipitation is 60%.

    Low: 25 °F

    Mostly Cloudy
    then Snow
    Likely

  • Saturday

    Saturday: Snow before noon, then rain and snow.  High near 36. Chance of precipitation is 90%.

    High: 36 °F

    Snow then
    Rain/Snow

Detailed Forecast

Overnight
Cloudy, with a low around 34. Breezy, with a west wind around 26 mph, with gusts as high as 39 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 39. Breezy, with a west wind 21 to 28 mph, with gusts as high as 45 mph.
Wednesday Night
Mostly clear, with a low around 23. West northwest wind 14 to 18 mph, with gusts as high as 33 mph.
Thanksgiving Day
Sunny, with a high near 38. West northwest wind 13 to 16 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 18. West northwest wind 6 to 10 mph, with gusts as high as 16 mph.
Friday
Sunny, with a high near 34. West northwest wind around 6 mph becoming calm in the afternoon.
Friday Night
Snow likely after midnight. Mostly cloudy, with a low around 25. Light south southeast wind becoming southeast 8 to 13 mph in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 60%.
Saturday
Snow before noon, then rain and snow. High near 36. Chance of precipitation is 90%.
Saturday Night
Rain. Low around 27. Chance of precipitation is 80%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 14.
Monday
A chance of snow. Partly sunny, with a high near 25.
Monday Night
Mostly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 28.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Decatur IL
 39.86°N 88.97°W (Elev. 676 ft)
4:07 am CST Nov 26, 2025
5am CST Nov 26, 2025-6pm CST Dec 2, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database