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

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Fair

15°F

-9°C

Humidity 61%
Wind Speed N 10 mph
Barometer 30.05 in (1019.3 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 1 Jan 2:53 am CST
Extended Forecast for

Summit IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 15. North northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 15 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: A slight chance of snow between noon and 1pm. Increasing clouds, with a high near 21. Wind chill values as low as 1. West wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 21 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. West northwest wind around 5 mph.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 26. Northwest wind around 5 mph.

    High: 26 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19. Northwest wind around 5 mph.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 15. North northwest wind around 10 mph, with gusts as high as 15 mph.
New Year's Day
A slight chance of snow between noon and 1pm. Increasing clouds, with a high near 21. Wind chill values as low as 1. West wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 16. West northwest wind around 5 mph.
Friday
Mostly sunny, with a high near 26. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 19. Northwest wind around 5 mph.
Saturday
Mostly cloudy, with a high near 30.
Saturday Night
Mostly clear, with a low around 17.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit IL
 41.8°N 87.83°W
Last Update:
2:11 am CST Jan 1, 2026
Forecast Valid:
3am CST Jan 1, 2026-6pm CST Jan 7, 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