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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

91°F

33°C

Humidity 47%
Wind Speed S 14 G 26 mph
Barometer 29.99 in (1014.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 8 Aug 4:53 pm CDT
Extended Forecast for

Orland Park IL

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 98. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 94. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 98. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
Mostly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Orland Park IL
 41.62°N 87.84°W
Last Update:
4:11 pm CDT Aug 8, 2025
Forecast Valid:
5pm CDT Aug 8, 2025-6pm CDT Aug 15, 2025
 
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