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.

Mostly Cloudy

78°F

26°C

Humidity 60%
Wind Speed E 7 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 26 May 11:54 am CDT
Extended Forecast for

4 Miles SSE Bethany IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 80. East wind around 7 mph.

    High: 80 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. East northeast wind 3 to 6 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. North wind 5 to 8 mph. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Northeast wind around 6 mph becoming light and variable.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80. East northeast wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. East northeast wind around 8 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77. East northeast wind around 7 mph.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 80. East wind around 7 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. East northeast wind 3 to 6 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. North wind 5 to 8 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 61. Northeast wind around 6 mph becoming light and variable.
Thursday
Mostly sunny, with a high near 80. East northeast wind 8 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 57. East northeast wind around 8 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 77. East northeast wind around 7 mph.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Bethany IL
 39.59°N 88.7°W (Elev. 676 ft)
Last Update:
11:31 am CDT May 26, 2026
Forecast Valid:
12pm CDT May 26, 2026-6pm CDT Jun 1, 2026
 
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