National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

34°F

1°C

Humidity 67%
Wind Speed NE 8 mph
Barometer 30.55 in (1035.6 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 27 Mar 11:53 pm CDT
Extended Forecast for

Lyons IL

  • Overnight

    Overnight: Clear, with a low around 27. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 49. North northeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 40. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 49. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 27. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 49. North northeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Increasing clouds, with a low around 40. South southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 49. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 74.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 38.
Wednesday
A chance of showers. Mostly cloudy, with a high near 46.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 34.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 47.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 39.
Friday
A chance of showers. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lyons IL
 41.82°N 87.83°W
Last Update:
8:41 pm CDT Mar 27, 2026
Forecast Valid:
12am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation