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

78°F

26°C

Humidity 58%
Wind Speed E 12 mph
Barometer 29.97 in (1014.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Aug 6:53 pm CDT
Extended Forecast for

Forest Park IL

  • Tonight

    Tonight: Mostly clear, with a low around 64. East wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 70. South wind around 5 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Southwest wind around 5 mph. Chance of precipitation is 70%.

    High: 79 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 68. North wind around 5 mph becoming south southwest in the evening. Chance of precipitation is 90%.

    Low: 68 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 64. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Increasing clouds, with a low around 70. South wind around 5 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Southwest wind around 5 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 68. North wind around 5 mph becoming south southwest in the evening. Chance of precipitation is 90%.
Thursday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Forest Park IL
 41.86°N 87.82°W
Last Update:
1:21 pm CDT Aug 3, 2026
Forecast Valid:
7pm CDT Aug 3, 2026-6pm CDT Aug 10, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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