Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

62°F

17°C

Humidity 38%
Wind Speed N 14 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 13 May 7:54 pm CDT
Extended Forecast for

Elwin IL

  • Tonight

    Tonight: Clear, with a low around 43. North wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 16 mph.

    Low: 43 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Light and variable wind.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am.  Increasing clouds, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    Low: 52 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely before 10am, then showers likely between 10am and 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 75. Breezy, with a south wind 16 to 22 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 62. South wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 81. Southwest wind 9 to 13 mph, with gusts as high as 17 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 1am.  Mostly cloudy, with a low around 63. Southwest wind around 9 mph becoming south southeast after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    T-storms
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 83. Breezy.

    High: 83 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 43. North wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.
Thursday
Sunny, with a high near 71. Light and variable wind.
Thursday Night
A slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday
Showers and thunderstorms likely before 10am, then showers likely between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 75. Breezy, with a south wind 16 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind 9 to 13 mph, with gusts as high as 20 mph.
Saturday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 81. Southwest wind 9 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 63. Southwest wind around 9 mph becoming south southeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 83. Breezy.
Sunday Night
Mostly clear, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Breezy.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Breezy.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 61.
Wednesday
A chance of showers. Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Elwin IL
 39.8°N 88.94°W (Elev. 699 ft)
7:51 pm CDT May 13, 2026
8pm CDT May 13, 2026-6pm CDT May 20, 2026
 
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Additional Resources

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