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.

Fair

76°F

24°C

Humidity 67%
Wind Speed W 9 mph
Barometer 30.02 in (1016.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 May 3:54 pm CDT
Extended Forecast for

2 Miles E Elwin IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. West wind around 13 mph, with gusts as high as 20 mph.

    High: 76 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 65. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 65 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Northeast wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 68. East wind 11 to 15 mph, with gusts as high as 22 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52. East wind 11 to 13 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 1pm. High near 68. East wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 68 °F

    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. West wind around 13 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 65. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Northeast wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 68. East wind 11 to 15 mph, with gusts as high as 22 mph.
Thursday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 52. East wind 11 to 13 mph, with gusts as high as 18 mph.
Friday
Showers, with thunderstorms also possible after 1pm. High near 68. East wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Friday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 55.
Saturday
Partly sunny, with a high near 75.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 58.
Sunday
A chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
Mostly cloudy, with a low around 59.
Memorial Day
A chance of showers. Partly sunny, with a high near 79.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Elwin IL
 39.8°N 88.91°W (Elev. 656 ft)
Last Update:
2:26 pm CDT May 19, 2026
Forecast Valid:
4pm CDT May 19, 2026-6pm CDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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