National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

51°F

11°C

Humidity 100%
Wind Speed NE 7 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 51°F (11°C)
Visibility 0.75 mi
Wind Chill48°F (9°C)
Last update 25 Dec 6:54 am CST
Extended Forecast for

2 Miles E Elwin IL

Dense Fog Advisory December 25, 07:43am until December 25, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 25, 07:43am until December 25, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Christmas Day

    High: 55 °F

    Slight Chance
    Drizzle and
    Dense Fog
    then Cloudy

  • Tonight

    Tonight: A chance of drizzle, mainly between 9pm and 3am. Patchy fog. Otherwise, cloudy, with a low around 50. East wind around 10 mph becoming south after midnight. Winds could gust as high as 17 mph.

    Low: 50 °F

    Chance
    Drizzle and
    Patchy Fog

  • Friday

    Friday: Patchy fog before noon. Otherwise, partly sunny, with a high near 63. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 41. Northwest wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 60. Southeast wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 60 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. Southeast wind around 11 mph becoming south southwest after midnight. Winds could gust as high as 18 mph.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely, mainly after noon. Cloudy, with a high near 62. South southwest wind 10 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 17. Blustery.

    Low: 17 °F

    Blustery.
    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Christmas Day
A slight chance of drizzle before noon. Widespread dense fog, mainly before 9am. Otherwise, cloudy, with a high near 55. East northeast wind 5 to 9 mph.
Tonight
A chance of drizzle, mainly between 9pm and 3am. Patchy fog. Otherwise, cloudy, with a low around 50. East wind around 10 mph becoming south after midnight. Winds could gust as high as 17 mph.
Friday
Patchy fog before noon. Otherwise, partly sunny, with a high near 63. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 41. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 60. Southeast wind 5 to 10 mph, with gusts as high as 17 mph.
Saturday Night
Mostly cloudy, with a low around 52. Southeast wind around 11 mph becoming south southwest after midnight. Winds could gust as high as 18 mph.
Sunday
Rain likely, mainly after noon. Cloudy, with a high near 62. South southwest wind 10 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 17. Blustery.
Monday
Sunny, with a high near 24. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Elwin IL
 39.8°N 88.91°W (Elev. 656 ft)
Last Update:
6:36 am CST Dec 25, 2025
Forecast Valid:
7am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation