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

29°F

-2°C

Humidity 72%
Wind Speed E 12 mph
Barometer 30.34 in (1028.3 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 28 Nov 11:54 pm CST
Extended Forecast for

Bethany IL

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

  • Overnight

    Overnight: Snow, mainly after 4am. Low around 25. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow

  • Saturday

    Saturday: Snow, possibly mixed with sleet before 4pm, then snow between 4pm and 5pm, then snow, possibly mixed with rain after 5pm. The snow could be heavy at times. High near 35. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 7 inches possible.

    High: 35 °F

    Breezy. Snow
    then Wintry
    Mix

  • Saturday Night

    Saturday Night: Rain and snow before midnight, then a chance of snow. Low around 24. Breezy, with a south wind 17 to 21 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
    Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 27. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 28 mph.

    High: 27 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 15 mph.

    Low: 11 °F

    Mostly Cloudy

  • Monday

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

    High: 26 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 14. Light and variable wind.

    Low: 14 °F

    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

Overnight
Snow, mainly after 4am. Low around 25. Southeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Saturday
Snow, possibly mixed with sleet before 4pm, then snow between 4pm and 5pm, then snow, possibly mixed with rain after 5pm. The snow could be heavy at times. High near 35. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 7 inches possible.
Saturday Night
Rain and snow before midnight, then a chance of snow. Low around 24. Breezy, with a south wind 17 to 21 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 27. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 11. Northwest wind 5 to 9 mph becoming calm 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 east northeast wind.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14. Light and variable wind.
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 13.
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:
Bethany IL
 39.64°N 88.75°W (Elev. 650 ft)
Last Update:
8:37 pm CST Nov 28, 2025
Forecast Valid:
12am CST Nov 29, 2025-6pm CST Dec 5, 2025
 
Forecast Discussion
 
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Additional Resources

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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