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.

Partly Cloudy

35°F

2°C

Humidity 78%
Wind Speed E 5 mph
Barometer 29.98 in (1015.7 mb)
Dewpoint 29°F (-2°C)
Visibility 7.00 mi
Wind Chill31°F (-1°C)
Last update 6 Dec 10:54 am CST
Extended Forecast for

2 Miles WNW Decatur IL

Winter Weather Advisory December 6, 09:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Mostly cloudy, with a high near 36. West wind around 5 mph becoming light and variable.

    High: 36 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of snow before midnight, then a chance of freezing rain between midnight and 1am, then a chance of rain after 1am. Cloudy, with a low around 28. Southeast wind 6 to 9 mph. Chance of precipitation is 50%.

    Low: 28 °F

    Slight Chance
    Snow then
    Chance
    Rain/Freezing
    Rain

  • Sunday

    Sunday: A chance of rain before 10am, then a chance of snow between 10am and noon. Mostly cloudy, with a temperature rising to near 34 by 9am, then falling to around 25 during the remainder of the day. Light and variable wind becoming north 9 to 14 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 34 °F⇓

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10. North wind 5 to 11 mph, with gusts as high as 15 mph.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 25. North northeast wind around 5 mph becoming south in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. South wind 5 to 14 mph, with gusts as high as 21 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 40. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 40 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 36. Breezy.

    Low: 36 °F

    Cloudy then
    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 38. Breezy.

    High: 38 °F

    Chance Rain
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 36. West wind around 5 mph becoming light and variable.
Tonight
A slight chance of snow before midnight, then a chance of freezing rain between midnight and 1am, then a chance of rain after 1am. Cloudy, with a low around 28. Southeast wind 6 to 9 mph. Chance of precipitation is 50%.
Sunday
A chance of rain before 10am, then a chance of snow between 10am and noon. Mostly cloudy, with a temperature rising to near 34 by 9am, then falling to around 25 during the remainder of the day. Light and variable wind becoming north 9 to 14 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 10. North wind 5 to 11 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 25. North northeast wind around 5 mph becoming south in the afternoon.
Monday Night
Partly cloudy, with a low around 14. South wind 5 to 14 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 40. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 36. Breezy.
Wednesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 38. Breezy.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
A chance of snow. Mostly cloudy, with a high near 29.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 22.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Decatur IL
 39.86°N 88.97°W (Elev. 676 ft)
Last Update:
10:26 am CST Dec 6, 2025
Forecast Valid:
11am CST Dec 6, 2025-6pm CST Dec 12, 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