Heavy Rainfall, Flooding, And Severe Thunderstorm Threats From The Mid South To The Great Lakes Today And Tonight

A slow moving low pressure system and cold front will bring the potential for severe thunderstorms capable of producing damaging winds and isolated tornadoes from portions of the Mid South to the Midwest and Great Lakes today and tonight. Heavy rainfall could also lead to flooding concerns. The severe weather threat will shift to the Mid Atlantic and Northeast on Wednesday. Read More >

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

79°F

26°C

Humidity 62%
Wind Speed SW 13 G 20 mph
Barometer 29.83 in (1009.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 25 Sep 1:53 pm CDT
Extended Forecast for

Chicago IL

Severe T-storm Watch until September 25, 10:00pm
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until September 25, 10:00pm

    NOW until
    10:00pm Tue

    Severe T-storm Watch

  • This
    Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Partly sunny, with a high near 80. Southwest wind around 15 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    High: 80 °F

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am.  Low around 52. Breezy, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms then
    Chance
    T-storms and
    Breezy

    Low: 52 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. West wind around 15 mph, with gusts as high as 20 mph.

    Mostly Sunny

    High: 63 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 51. West northwest wind 5 to 10 mph.

    Mostly Clear

    Low: 51 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 70. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Mostly Sunny

    High: 70 °F

  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 53.

    Mostly Cloudy

    Low: 53 °F

  • Friday

    Friday: Mostly sunny, with a high near 65.

    Mostly Sunny

    High: 65 °F

  • Friday
    Night

    Friday Night: A chance of rain, mainly after 1am.  Mostly cloudy, with a low around 51.

    Chance Rain

    Low: 51 °F

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 80. Southwest wind around 15 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Low around 52. Breezy, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 63. West wind around 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 51. West northwest wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 70. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 65.
Friday Night
A chance of rain, mainly after 1am. Mostly cloudy, with a low around 51.
Saturday
A chance of rain. Partly sunny, with a high near 58.
Saturday Night
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 50.
Sunday
A slight chance of rain. Partly sunny, with a high near 63.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 56.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
Click Map For Forecast
Point Forecast:
Chicago IL
 41.84°N 87.68°W
1:16 pm CDT Sep 25, 2018
2pm CDT Sep 25, 2018-6pm CDT Oct 1, 2018
 
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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