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.

Overcast

65°F

18°C

Humidity 59%
Wind Speed NW 3 mph
Barometer 30.02 in (1016.2 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Jun 11:54 pm CDT
Extended Forecast for

4 Miles SSE Bethany IL

  • Overnight

    Overnight: Mostly clear, with a low around 52. Light north northwest wind.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Light and variable wind becoming south southwest 5 to 7 mph in the evening.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly after 1pm. High near 76. Southwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 56. West southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 81. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 66. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 66 °F

    Heavy Rain
    and Breezy

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Light north northwest wind.
Monday
Sunny, with a high near 73. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 55. Light and variable wind becoming south southwest 5 to 7 mph in the evening.
Tuesday
Showers and possibly a thunderstorm, mainly after 1pm. High near 76. Southwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 56. West southwest wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 40%.
Wednesday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 81. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 66. Breezy, with a southwest wind 15 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 56.
Juneteenth
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A chance of showers. Partly cloudy, with a low around 63.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Bethany IL
 39.59°N 88.7°W (Elev. 676 ft)
Last Update:
12:21 am CDT Jun 15, 2026
Forecast Valid:
12am CDT Jun 15, 2026-6pm CDT Jun 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation