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.

Partly Cloudy and Breezy

66°F

19°C

Humidity 50%
Wind Speed S 22 G 35 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 15 May 12:53 pm CDT
Extended Forecast for

Forest Park IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 75 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 63. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Mostly Clear
    then Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. South southeast wind 10 to 15 mph becoming west southwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 10am. Partly sunny, with a high near 86. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 86 °F

    Slight Chance
    T-storms then
    Partly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. Breezy. Chance of precipitation is 70%.

    High: 85 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy.

    High: 79 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 75. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 63. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. South southeast wind 10 to 15 mph becoming west southwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 10am. Partly sunny, with a high near 86. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 69.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 85. Breezy. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy.
Tuesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Forest Park IL
 41.86°N 87.82°W
Last Update:
1:21 pm CDT May 15, 2026
Forecast Valid:
1pm CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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