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.

Overcast

66°F

19°C

Humidity 96%
Wind Speed SW 8 mph
Barometer 29.96 in (1013.9 mb)
Dewpoint 65°F (18°C)
Visibility 7.00 mi
Last update 19 Sep 11:53 am CDT
Extended Forecast for

3 Miles NNE Chicago IL

Flood Watch September 19, 12:41pm until September 20, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 19, 12:41pm until September 20, 07:00am

    NOW until 7:00am Sun

    Flood Watch

  • This Afternoon

    High: 71 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 8pm, then showers and possibly a thunderstorm after 8pm.  Low around 63. East southeast wind 5 to 10 mph becoming west northwest after midnight.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 63 °F

    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm.  Cloudy, with a high near 69. Breezy, with a northeast wind 10 to 20 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: 69 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 57. East northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly before 1pm.  Cloudy, with a high near 65. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph.

    High: 65 °F

    Chance
    Showers and
    Breezy

  • 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 64.

    High: 64 °F

    Slight Chance
    Showers

  • Tuesday Night

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

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Cloudy, with a high near 71. East wind 5 to 10 mph.
Tonight
Showers likely and possibly a thunderstorm before 7pm, then showers and thunderstorms likely between 7pm and 8pm, then showers and possibly a thunderstorm after 8pm. Low around 63. East southeast wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 69. Breezy, with a northeast wind 10 to 20 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 20 percent chance of showers. Mostly cloudy, with a low around 57. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday
A 30 percent chance of showers, mainly before 1pm. Cloudy, with a high near 65. Breezy, with an east northeast wind 15 to 20 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 64.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Chicago IL
 41.88°N 87.68°W
12:11 pm CDT Sep 19, 2026
12pm CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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