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.

Mostly Cloudy

78°F

26°C

Humidity 52%
Wind Speed Vrbl 3 mph
Barometer 30.01 in (1015.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Jul 9:53 am CDT
Extended Forecast for

Lyons IL

  • Today

    Today: Mostly cloudy, with a high near 84. West wind 5 to 10 mph.

    High: 84 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 68. West northwest wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 84. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 68. West northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 65.
Saturday
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:
9:56 am CDT Jul 13, 2025
Forecast Valid:
10am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation