Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Light Rain

64°F

18°C

Humidity 96%
Wind Speed E 7 mph
Barometer 30.00 in (1015.3 mb)
Dewpoint 63°F (17°C)
Visibility 8.00 mi
Last update 19 Sep 8:53 am CDT
Extended Forecast for

Crestwood IL

Flood Watch until September 19, 01:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until September 19, 01:00pm

    NOW until 1:00pm Sat

    Flood Watch

  • Today

    High: 78 °F

    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9pm.  Low around 66. East wind around 5 mph becoming southwest after midnight. Winds could gust as high as 10 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 66 °F

    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm.  Cloudy, with a high near 70. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 58. East northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly before 1pm.  Mostly cloudy, with a high near 65. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm.  Mostly cloudy, with a high near 63.

    High: 63 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. East southeast wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9pm. Low around 66. East wind around 5 mph becoming southwest after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 70. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 65. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Crestwood IL
 41.66°N 87.75°W
8:46 am CDT Sep 19, 2026
9am CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
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Additional Resources

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