National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

34°F

1°C

Humidity 92%
Wind Speed Calm
Barometer 30.26 in (1025.2 mb)
Dewpoint 32°F (0°C)
Visibility 9.00 mi
Last update 2 Nov 7:54 am CST
Extended Forecast for

Bement IL

  • Today

    Today: Sunny, with a high near 55. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. West northwest wind 7 to 13 mph, with gusts as high as 18 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. West northwest wind around 6 mph becoming calm in the evening.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Light south southeast wind becoming south 11 to 16 mph in the morning. Winds could gust as high as 23 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47. South southwest wind 11 to 14 mph, with gusts as high as 18 mph.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 68. Southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 55. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 35. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 62. West northwest wind 7 to 13 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 35. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 66. Light south southeast wind becoming south 11 to 16 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 47. South southwest wind 11 to 14 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 68. Southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 49.
Friday
A chance of rain. Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 64.
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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:
8:12 am CST Nov 2, 2025
Forecast Valid:
8am CST Nov 2, 2025-6pm CST Nov 8, 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