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.

Light Snow and Breezy

21°F

-6°C

Humidity 78%
Wind Speed W 21 G 40 mph
Barometer 29.84 in (1011.2 mb)
Dewpoint 15°F (-9°C)
Visibility 4.00 mi
Wind Chill5°F (-15°C)
Last update 16 Mar 11:54 am CDT
Extended Forecast for

3 Miles NNE Dalton City IL

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly before 4pm. Mostly cloudy, with a high near 25. Wind chill values between 5 and 10. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 41 mph.

    High: 25 °F

    Chance Snow
    and Windy

  • Tonight

    Tonight: A chance of flurries with a slight chance of snow before 7pm, then a chance of flurries between 7pm and 11pm. Mostly cloudy, with a low around 12. Wind chill values between -4 and 6. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 10%.

    Low: 12 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Wind chill values between -4 and 6. West northwest wind 9 to 15 mph, with gusts as high as 21 mph.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely. Cloudy, with a low around 24. South southeast wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Snow Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 53. South wind 13 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 53 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. South wind around 7 mph.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. South wind 7 to 9 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 4pm. Mostly cloudy, with a high near 25. Wind chill values between 5 and 10. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 41 mph.
Tonight
A chance of flurries with a slight chance of snow before 7pm, then a chance of flurries between 7pm and 11pm. Mostly cloudy, with a low around 12. Wind chill values between -4 and 6. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 10%.
Tuesday
Partly sunny, with a high near 27. Wind chill values between -4 and 6. West northwest wind 9 to 15 mph, with gusts as high as 21 mph.
Tuesday Night
Snow likely. Cloudy, with a low around 24. South southeast wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 53. South wind 13 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 36. South wind around 7 mph.
Thursday
Mostly sunny, with a high near 64. South wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Dalton City IL
 39.75°N 88.77°W (Elev. 712 ft)
Last Update:
11:57 am CDT Mar 16, 2026
Forecast Valid:
12pm CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
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