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.

Fair

30°F

-1°C

Humidity 69%
Wind Speed Calm
Barometer 30.11 in (1020.6 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 17 Mar 2:53 am CDT
Extended Forecast for

Lyons IL

  • Overnight

    Overnight: Clear, with a low around 27. Calm wind.

    Low: 27 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 55. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 55 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 66. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 65. Breezy. Chance of precipitation is 90%.

    High: 65 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: Rain showers before 1am, then rain and snow showers between 1am and 4am, then snow showers after 4am. Some thunder is also possible. Low around 32. Breezy. Chance of precipitation is 100%.

    Low: 32 °F

    Breezy.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 45. Breezy.

    High: 45 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 27. Calm wind.
Monday
Mostly sunny, with a high near 55. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Monday Night
Mostly clear, with a low around 44. South southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
Partly sunny, with a high near 66. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 55. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 65. Breezy. Chance of precipitation is 90%.
Wednesday Night
Rain showers before 1am, then rain and snow showers between 1am and 4am, then snow showers after 4am. Some thunder is also possible. Low around 32. Breezy. Chance of precipitation is 100%.
Thursday
Mostly sunny, with a high near 45. Breezy.
Thursday Night
Mostly clear, with a low around 34.
Friday
Partly sunny, with a high near 57.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40.
Saturday
A chance of showers. Partly sunny, with a high near 50.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
Lyons IL
 41.82°N 87.8°W
Last Update:
2:06 am CDT Mar 17, 2025
Forecast Valid:
2am CDT Mar 17, 2025-6pm CDT Mar 23, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation