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.

Overcast and Breezy

29°F

-2°C

Humidity 72%
Wind Speed W 24 G 40 mph
Barometer 30.04 in (1018.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 30 Nov 2:54 am CST
Extended Forecast for

3 Miles W Arthur IL

  • Overnight

    Overnight: A 20 percent chance of snow before 4am. Cloudy, with a steady temperature around 27. Breezy, with a west wind around 23 mph, with gusts as high as 37 mph.

    Low: 27 °F

    Slight Chance
    Snow and
    Breezy

  • Sunday

    Sunday: Cloudy, with a high near 24. Wind chill values between 5 and 12. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 24 °F

    Cloudy and
    Breezy then
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 16 mph.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: A 50 percent chance of snow after noon. Cloudy, with a high near 30. Light and variable wind.

    High: 30 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 17. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow then
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 24. Northwest wind around 6 mph becoming west southwest in the afternoon.

    High: 24 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 13. South wind 3 to 8 mph.

    Low: 13 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow before 4am. Cloudy, with a steady temperature around 27. Breezy, with a west wind around 23 mph, with gusts as high as 37 mph.
Sunday
Cloudy, with a high near 24. Wind chill values between 5 and 12. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 34 mph.
Sunday Night
Mostly cloudy, with a low around 16. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 16 mph.
Monday
A 50 percent chance of snow after noon. Cloudy, with a high near 30. Light and variable wind.
Monday Night
Snow, mainly before midnight. Low around 17. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Partly sunny, with a high near 24. Northwest wind around 6 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 13. South wind 3 to 8 mph.
Wednesday
Partly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Mostly sunny, with a high near 16.
Thursday Night
Mostly cloudy, with a low around 0.
Friday
A chance of snow. Mostly cloudy, with a high near 26.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Mostly cloudy, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Arthur IL
 39.72°N 88.52°W (Elev. 682 ft)
Last Update:
2:36 am CST Nov 30, 2025
Forecast Valid:
3am CST Nov 30, 2025-6pm CST Dec 6, 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