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

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

A Few Clouds

51°F

11°C

Humidity 46%
Wind Speed NE 15 G 23 mph
Barometer 30.27 in (1025.2 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 20 May 8:53 pm CDT
Extended Forecast for

Lyons IL

  • Tonight

    Tonight: Partly cloudy, with a low around 47. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 65. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers. Low around 53. East northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 53 °F

    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 73.

    High: 73 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy, with a high near 78.

    High: 78 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 61. Northeast wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 49. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 65. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Showers. Low around 53. East northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday
A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 73.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56.
Sunday
Mostly cloudy, with a high near 78.
Sunday Night
Partly cloudy, with a low around 57.
Memorial Day
Partly sunny, with a high near 80.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 83.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lyons IL
 41.82°N 87.83°W
Last Update:
9:16 pm CDT May 20, 2026
Forecast Valid:
9pm CDT May 20, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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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