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

65°F

18°C

Humidity 70%
Wind Speed S 15 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 31 Mar 5:54 am CDT
Extended Forecast for

Bethany IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 79. Breezy, with a south southwest wind 16 to 23 mph, with gusts as high as 34 mph.

    High: 79 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 50. South southwest wind 9 to 13 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then rain and possibly a thunderstorm after 1pm. High near 65. East northeast wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 57. East southeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 75. Breezy, with a south wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Breezy.
    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 57. Breezy, with a south wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Rain and
    Breezy

  • Friday

    Friday: A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 76. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    T-storms then
    Rain Likely

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Breezy. Chance of precipitation is 70%.

    High: 68 °F

    Rain Likely
    and Breezy

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 10am. Partly sunny, with a high near 79. Breezy, with a south southwest wind 16 to 23 mph, with gusts as high as 34 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 50. South southwest wind 9 to 13 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 1pm, then rain and possibly a thunderstorm after 1pm. High near 65. East northeast wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 57. East southeast wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 75. Breezy, with a south wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 57. Breezy, with a south wind 11 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 76. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Breezy. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Bethany IL
 39.64°N 88.75°W (Elev. 650 ft)
Last Update:
2:16 am CDT Mar 31, 2026
Forecast Valid:
6am CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation