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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

23°F

-5°C

Humidity 48%
Wind Speed N 5 mph
Barometer 30.32 in (1027.8 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 22 Jan 8:54 pm CST
Extended Forecast for

3 Miles ESE Bethany IL

Winter Storm Watch January 24, 06:00am until January 25, 06:00pm
Cold Weather Advisory January 23, 03:00am until January 24, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 1. Wind chill values between -2 and -12. North northwest wind 7 to 17 mph, with gusts as high as 25 mph.

    Low: 1 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 7. Wind chill values between -10 and -19. North wind 11 to 17 mph, with gusts as high as 26 mph.

    High: 7 °F

    Cold

  • Friday Night

    Friday Night: Increasing clouds, with a low around -1. Wind chill values between -11 and -16. Northeast wind around 10 mph, with gusts as high as 17 mph.

    Low: -1 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Snow, mainly after noon. High near 10. Wind chill values between -4 and -14. East northeast wind around 10 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 10 °F

    Chance Snow
    then Snow

  • Saturday Night

    Saturday Night: Snow. Low around 7. East northeast wind 9 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 7 °F

    Snow

  • Sunday

    Sunday: Snow likely. Cloudy, with a high near 14. North northeast wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 14 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around -2. Northwest wind around 10 mph, with gusts as high as 18 mph.

    Low: -2 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 11.

    High: 11 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -1.

    Low: -1 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 1. Wind chill values between -2 and -12. North northwest wind 7 to 17 mph, with gusts as high as 25 mph.
Friday
Partly sunny and cold, with a high near 7. Wind chill values between -10 and -19. North wind 11 to 17 mph, with gusts as high as 26 mph.
Friday Night
Increasing clouds, with a low around -1. Wind chill values between -11 and -16. Northeast wind around 10 mph, with gusts as high as 17 mph.
Saturday
Snow, mainly after noon. High near 10. Wind chill values between -4 and -14. East northeast wind around 10 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Saturday Night
Snow. Low around 7. East northeast wind 9 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow likely. Cloudy, with a high near 14. North northeast wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around -2. Northwest wind around 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 11.
Monday Night
Mostly clear, with a low around -1.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
Mostly cloudy, with a low around 8.
Wednesday
Partly sunny, with a high near 19.
Wednesday Night
Partly cloudy, with a low around 0.
Thursday
Mostly sunny, with a high near 12.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Bethany IL
 39.63°N 88.69°W (Elev. 623 ft)
Last Update:
9:36 pm CST Jan 22, 2026
Forecast Valid:
9pm CST Jan 22, 2026-6pm CST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation