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

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Fog

41°F

5°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.99 in (1016.1 mb)
Dewpoint 41°F (5°C)
Visibility 0.13 mi
Last update 5 Mar 12:53 am CST
Extended Forecast for

Chicago IL

Dense Fog Advisory March 5, 01:37am until March 5, 03:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 01:37am until March 5, 03:00pm

    NOW until 3:00pm Thu

    Dense Fog Advisory

  • Overnight

    Low: 39 °F

    Chance
    Showers and
    Dense Fog

  • Thursday

    Thursday: A 40 percent chance of showers, mainly before noon. Widespread dense fog, mainly before noon. Otherwise, cloudy, with a high near 40. North wind around 5 mph.

    High: 40 °F

    Chance
    Showers and
    Dense Fog

  • Thursday Night

    Thursday Night: Widespread fog, mainly after 9pm. Otherwise, cloudy, with a low around 40. North northeast wind around 5 mph becoming southeast after midnight.

    Low: 40 °F

    Fog

  • Friday

    Friday: Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of showers after 3pm. Widespread fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 68. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely and
    Fog

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Low: 56 °F

    Chance
    T-storms then
    Showers and
    Breezy

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 59. Breezy.

    High: 59 °F

    Breezy.
    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

Overnight
A slight chance of drizzle before 4am, then a chance of showers after 4am. Widespread dense fog. Otherwise, cloudy, with a low around 39. North northeast wind around 5 mph. Chance of precipitation is 30%.
Thursday
A 40 percent chance of showers, mainly before noon. Widespread dense fog, mainly before noon. Otherwise, cloudy, with a high near 40. North wind around 5 mph.
Thursday Night
Widespread fog, mainly after 9pm. Otherwise, cloudy, with a low around 40. North northeast wind around 5 mph becoming southeast after midnight.
Friday
Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of showers after 3pm. Widespread fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 68. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 56. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Saturday
A 40 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 59. Breezy.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Showers likely. Mostly cloudy, with a high near 64.
Tuesday Night
Showers. Cloudy, with a low around 43. Breezy.
Wednesday
Rain likely. Mostly cloudy, with a high near 51. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chicago IL
 41.84°N 87.68°W
Last Update:
1:26 am CST Mar 5, 2026
Forecast Valid:
1am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation