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

77°F

25°C

Humidity 24%
Wind Speed Calm
Barometer 30.20 in (1022.4 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 10 May 12:54 pm CDT
Extended Forecast for

Bement IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. North wind around 7 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Northeast wind 8 to 13 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. East northeast wind 9 to 11 mph, with gusts as high as 15 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. East wind 8 to 10 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. East southeast wind 9 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 61. East southeast wind 6 to 10 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Partly sunny, with a high near 79. South southeast wind 6 to 9 mph.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. North wind around 7 mph.
Tonight
Mostly clear, with a low around 45. Northeast wind 8 to 13 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 80. East northeast wind 9 to 11 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 57. East wind 8 to 10 mph, with gusts as high as 15 mph.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. East southeast wind 9 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 61. East southeast wind 6 to 10 mph. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 79. South southeast wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 90. Breezy.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
Sunny, with a high near 87.
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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:
12:43 pm CDT May 10, 2025
Forecast Valid:
1pm CDT May 10, 2025-6pm CDT May 16, 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