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.

Fair

26°F

-3°C

Humidity 71%
Wind Speed SE 6 mph
Barometer 30.38 in (1029.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 28 Nov 6:54 pm CST
Extended Forecast for

3 Miles W Arthur IL

Winter Storm Warning November 29, 06:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: Snow likely, mainly after 5am. Increasing clouds, with a low around 23. Light east wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 23 °F

    Mostly Cloudy
    then Snow
    Likely

  • Saturday

    Saturday: Snow before 3pm, then snow, possibly mixed with sleet between 3pm and 4pm, then snow after 4pm. The snow could be heavy at times. High near 34. Breezy, with a south southeast wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 4 to 8 inches possible.

    High: 34 °F

    Breezy. Snow
    then
    Snow/Sleet

  • Saturday Night

    Saturday Night: Snow before 8pm, then rain and snow between 8pm and 3am, then a chance of snow after 3am. Low around 24. Breezy, with a south wind 18 to 22 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Breezy.
    Rain/Snow
    then Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 28. Breezy, with a west northwest wind 11 to 21 mph, with gusts as high as 29 mph.

    High: 28 °F

    Cloudy and
    Breezy then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

    Low: 12 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of snow after noon. Cloudy, with a high near 26. Light northeast wind.

    High: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday Night

    Monday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 15 °F

    Snow Likely
    then Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly after 5am. Increasing clouds, with a low around 23. Light east wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow before 3pm, then snow, possibly mixed with sleet between 3pm and 4pm, then snow after 4pm. The snow could be heavy at times. High near 34. Breezy, with a south southeast wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 4 to 8 inches possible.
Saturday Night
Snow before 8pm, then rain and snow between 8pm and 3am, then a chance of snow after 3am. Low around 24. Breezy, with a south wind 18 to 22 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday
Mostly cloudy, with a high near 28. Breezy, with a west northwest wind 11 to 21 mph, with gusts as high as 29 mph.
Sunday Night
Mostly cloudy, with a low around 12. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Monday
A 30 percent chance of snow after noon. Cloudy, with a high near 26. Light northeast wind.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 24.
Tuesday Night
Mostly cloudy, with a low around 12.
Wednesday
Partly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 14.
Thursday
Partly sunny, with a high near 23.
Thursday Night
Mostly cloudy, with a low around 9.
Friday
Partly sunny, with a high near 31.
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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:
6:36 pm CST Nov 28, 2025
Forecast Valid:
7pm CST Nov 28, 2025-6pm CST Dec 5, 2025
 
Forecast Discussion
 
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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