Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

55°F

13°C

Humidity 96%
Wind Speed S 7 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 54°F (12°C)
Visibility 3.00 mi
Wind Chill53°F (12°C)
Last update 24 Dec 5:54 pm CST
Extended Forecast for

2 Miles NNE Decatur Airport IL

Dense Fog Advisory December 24, 09:00pm until December 25, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  • Tonight

    Tonight: A chance of drizzle, mainly before midnight.  Patchy dense fog.  Otherwise, cloudy, with a low around 47. South southeast wind 5 to 9 mph becoming light and variable. Winds could gust as high as 15 mph.

    Low: 47 °F

    Chance
    Drizzle and
    Patchy Dense
    Fog

  • Christmas Day

    Christmas Day: Areas of dense fog before 11am.  Otherwise, cloudy, with a high near 52. North northeast wind 6 to 9 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

    High: 52 °F

    Areas Dense
    Fog then
    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight.  Mostly cloudy, with a low around 49. East wind around 10 mph becoming south after midnight. Winds could gust as high as 17 mph.

    Low: 49 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 64. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 59. Southeast wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 59 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49. Southeast wind around 10 mph becoming southwest after midnight. Winds could gust as high as 17 mph.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of rain.  Cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before midnight.  Mostly cloudy, with a low around 15. Blustery.

    Low: 15 °F

    Blustery.
    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
A chance of drizzle, mainly before midnight. Patchy dense fog. Otherwise, cloudy, with a low around 47. South southeast wind 5 to 9 mph becoming light and variable. Winds could gust as high as 15 mph.
Christmas Day
Areas of dense fog before 11am. Otherwise, cloudy, with a high near 52. North northeast wind 6 to 9 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 49. East wind around 10 mph becoming south after midnight. Winds could gust as high as 17 mph.
Friday
Partly sunny, with a high near 64. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 41. Northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 59. Southeast wind 5 to 10 mph, with gusts as high as 16 mph.
Saturday Night
Mostly cloudy, with a low around 49. Southeast wind around 10 mph becoming southwest after midnight. Winds could gust as high as 17 mph.
Sunday
A 50 percent chance of rain. Cloudy, with a high near 55.
Sunday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 15. Blustery.
Monday
Sunny, with a high near 24. Blustery.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Partly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Decatur Airport IL
 39.86°N 88.85°W (Elev. 682 ft)
6:01 pm CST Dec 24, 2025
6pm CST Dec 24, 2025-6pm CST Dec 31, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database