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

67°F

19°C

Humidity 84%
Wind Speed SW 6 mph
Barometer 30.02 in (1016.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 4:54 am CDT
Extended Forecast for

3 Miles SE Bethany IL

Heat Advisory June 21, 12:00pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 85. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93. Heat index values as high as 103. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 75. South wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 74. South wind 7 to 9 mph, with gusts as high as 16 mph.

    Low: 74 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94. South southwest wind 6 to 8 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 85. South southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 74. South wind 11 to 13 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 93. Heat index values as high as 103. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Clear, with a low around 75. South wind 9 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 94. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 74. South wind 7 to 9 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 94. South southwest wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Bethany IL
 39.61°N 88.7°W (Elev. 650 ft)
Last Update:
4:55 am CDT Jun 20, 2025
Forecast Valid:
5am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation