Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

55°F

13°C

Humidity 87%
Wind Speed NA
Barometer 30.12 in (1019.7 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 25 May 4:54 am CDT
Extended Forecast for

6 Miles WSW Bethany IL

  • Memorial Day

    Memorial Day: Sunny, with a high near 79. Calm wind becoming east 5 to 8 mph in the morning.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. East southeast wind 3 to 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 80. East southeast wind 5 to 7 mph.

    High: 80 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am.  Mostly cloudy, with a low around 64. East southeast wind 3 to 6 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 79. East wind around 6 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. East wind 5 to 7 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. East wind 7 to 11 mph, with gusts as high as 16 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Memorial Day
Sunny, with a high near 79. Calm wind becoming east 5 to 8 mph in the morning.
Tonight
Partly cloudy, with a low around 56. East southeast wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 80. East southeast wind 5 to 7 mph.
Tuesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 64. East southeast wind 3 to 6 mph.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. East wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 62. East wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 82. East wind 7 to 11 mph, with gusts as high as 16 mph.
Thursday Night
Mostly cloudy, with a low around 61.
Friday
Partly sunny, with a high near 77.
Friday Night
Mostly cloudy, with a low around 60.
Saturday
Partly sunny, with a high near 74.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Bethany IL
 39.62°N 88.84°W (Elev. 689 ft)
4:37 am CDT May 25, 2026
5am CDT May 25, 2026-6pm CDT May 31, 2026
 
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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