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.

Light Rain Fog

42°F

6°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.98 in (1015.7 mb)
Dewpoint 42°F (6°C)
Visibility 0.50 mi
Last update 5 Mar 7:53 am CST
Extended Forecast for

McCook IL

Dense Fog Advisory March 5, 08:18am until March 5, 03:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 08:18am until March 5, 03:00pm

    NOW until 3:00pm Thu

    Dense Fog Advisory

  • Today

    High: 42 °F

    Areas Drizzle
    and Dense Fog

  • Tonight

    Tonight: Widespread fog, mainly after midnight. Otherwise, cloudy, with a low around 42. Northeast wind around 5 mph becoming southeast after midnight.

    Low: 42 °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. Areas of fog before 3pm. Otherwise, mostly cloudy, with a high near 71. 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%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely and
    Areas Fog

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 57. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Low: 57 °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 60. Breezy, with a southwest wind 10 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 60 °F

    Breezy.
    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Today
Areas of drizzle with scattered showers before noon, then patchy drizzle between noon and 2pm. Widespread dense fog, mainly before noon. Otherwise, cloudy, with a high near 42. North wind around 5 mph. Chance of precipitation is 30%.
Tonight
Widespread fog, mainly after midnight. Otherwise, cloudy, with a low around 42. 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. Areas of fog before 3pm. Otherwise, mostly cloudy, with a high near 71. 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%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 57. 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 60. Breezy, with a southwest wind 10 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Showers likely. Mostly cloudy, with a high near 66.
Tuesday Night
Showers. Cloudy, with a low around 45.
Wednesday
Rain likely. Mostly cloudy, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
McCook IL
 41.8°N 87.83°W
Last Update:
5:21 am CST Mar 5, 2026
Forecast Valid:
8am CST Mar 5, 2026-6pm CDT Mar 11, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation