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

Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture from the remnants of Odalys and Hurricane Polo will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Flood Watches have been issued through Wednesday in the southwest U.S. and moderate risk outlooks have been issued today through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

68°F

20°C

Humidity 70%
Wind Speed NE 6 mph
Barometer 30.11 in (1019.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 28 Sep 10:53 am CDT
Extended Forecast for

Chicago IL

  • Today

    Today: Sunny, with a high near 70. Northeast wind around 5 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 76 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62. South wind 5 to 10 mph.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 76. South wind around 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 1pm. High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Northeast wind around 5 mph.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 56. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Tuesday Night
Mostly cloudy, with a low around 62. South wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 76. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 67.
Thursday
Showers, with thunderstorms also possible after 1pm. High near 73. Chance of precipitation is 80%.
Thursday Night
A chance of showers. Cloudy, with a low around 58.
Friday
Partly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
11:31 am CDT Sep 28, 2026
Forecast Valid:
11am CDT Sep 28, 2026-6pm CDT Oct 4, 2026
 
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