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.

Overcast

12°F

-11°C

Humidity 64%
Wind Speed SW 18 G 29 mph
Barometer 29.95 in (1016.6 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 27 Jan 2:53 am CST
Extended Forecast for

Summit IL

  • Overnight

    Overnight: Isolated snow showers after 5am. Patchy blowing snow. Mostly cloudy, with a steady temperature around 12. Wind chill values as low as -7. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 12 °F

    Isolated Snow
    Showers and
    Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Scattered snow showers before 9am, then scattered flurries between 9am and 3pm. Patchy blowing snow. Mostly cloudy, with a high near 14. Wind chill values as low as -6. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 14 °F

    Scattered
    Snow Showers
    and Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 2. Wind chill values as low as -12. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 2 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 15. Wind chill values as low as -11. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 15 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 1. Northwest wind 5 to 10 mph.

    Low: 1 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 13.

    High: 13 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Partly cloudy, with a low around 2.

    Low: 2 °F

    Slight Chance
    Snow

  • Friday

    Friday: A chance of snow after noon. Partly sunny, with a high near 15.

    High: 15 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Chance Snow

Detailed Forecast

Overnight
Isolated snow showers after 5am. Patchy blowing snow. Mostly cloudy, with a steady temperature around 12. Wind chill values as low as -7. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tuesday
Scattered snow showers before 9am, then scattered flurries between 9am and 3pm. Patchy blowing snow. Mostly cloudy, with a high near 14. Wind chill values as low as -6. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 2. Wind chill values as low as -12. West wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 15. Wind chill values as low as -11. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 1. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 13.
Thursday Night
A 20 percent chance of snow. Partly cloudy, with a low around 2.
Friday
A chance of snow after noon. Partly sunny, with a high near 15.
Friday Night
A chance of snow. Mostly cloudy, with a low around 7.
Saturday
Partly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 11.
Monday
Partly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
2:51 am CST Jan 27, 2026
Forecast Valid:
3am CST Jan 27, 2026-6pm CST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation