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

15°F

-9°C

Humidity 70%
Wind Speed W 5 mph
Barometer 30.27 in (1026.5 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 28 Jan 9:54 pm CST
Extended Forecast for

Bement IL

  • Tonight

    Tonight: Partly cloudy, with a low around -2. Wind chill values between -7 and -12. West northwest wind 5 to 7 mph becoming light and variable.

    Low: -2 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 15. Wind chill values between -1 and -11. North wind 3 to 6 mph.

    High: 15 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of snow before midnight, then a chance of flurries after midnight. Mostly cloudy, with a low around -3. Wind chill values between -9 and -14. North wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: -3 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 14. Wind chill values between -5 and -15. North wind 6 to 10 mph.

    High: 14 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 0. North wind 8 to 14 mph, with gusts as high as 20 mph.

    Low: 0 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 18. Northwest wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 18 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2. Northwest wind 6 to 9 mph.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 10.

    Low: 10 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -2. Wind chill values between -7 and -12. West northwest wind 5 to 7 mph becoming light and variable.
Thursday
Mostly cloudy, with a high near 15. Wind chill values between -1 and -11. North wind 3 to 6 mph.
Thursday Night
A slight chance of snow before midnight, then a chance of flurries after midnight. Mostly cloudy, with a low around -3. Wind chill values between -9 and -14. North wind 3 to 6 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 14. Wind chill values between -5 and -15. North wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 0. North wind 8 to 14 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 18. Northwest wind 10 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 2. Northwest wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 10.
Monday
Mostly cloudy, with a high near 28.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly cloudy, with a high near 29.
Tuesday Night
A chance of snow. Cloudy, with a low around 21.
Wednesday
A chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bement IL
 39.92°N 88.56°W (Elev. 676 ft)
Last Update:
10:12 pm CST Jan 28, 2026
Forecast Valid:
10pm CST Jan 28, 2026-6pm CST Feb 4, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation