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 84%
Wind Speed SE 8 mph
Barometer 29.95 in (1013.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Sep 4:53 am CDT
Extended Forecast for

4 Miles NE Chicago 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

  • Overnight

    Low: 66 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then showers and thunderstorms likely, mainly between noon and 1pm. Some of the storms could produce heavy rainfall.  High near 75. South wind 5 to 15 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 75 °F

    Heavy Rain
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm.  Low around 64. East southeast wind 5 to 10 mph becoming west after midnight.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 64 °F

    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm.  Cloudy, with a high near 69. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 58. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 58 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: A 30 percent chance of showers, mainly before 1pm.  Cloudy, with a high near 65. Breezy.

    High: 65 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. Breezy.

    Low: 55 °F

    Cloudy and
    Breezy then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Breezy.

    High: 64 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Steady temperature around 66. East southeast wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm before noon, then showers and thunderstorms likely, mainly between noon and 1pm. Some of the storms could produce heavy rainfall. High near 75. South wind 5 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Low around 64. East southeast wind 5 to 10 mph becoming west 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 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 58. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 30 percent chance of showers, mainly before 1pm. Cloudy, with a high near 65. Breezy.
Monday Night
Mostly cloudy, with a low around 55. Breezy.
Tuesday
Mostly cloudy, with a high near 64. Breezy.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Chicago IL
 41.88°N 87.65°W
3:46 am CDT Sep 19, 2026
4am CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
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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