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

20°F

-7°C

Humidity 52%
Wind Speed W 17 G 28 mph
Barometer 29.79 in (1010.1 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 17 Jan 2:53 am CST
Extended Forecast for

Summit Argo IL

  • Overnight

    Overnight: A chance of flurries. Mostly cloudy, with a low around 16. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Chance
    Flurries

  • Saturday

    Saturday: A slight chance of flurries before 1pm, then snow likely, mainly after 3pm. Cloudy, with a high near 20. Wind chill values as low as 1. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Mostly Cloudy
    then Snow
    Likely

  • Saturday Night

    Saturday Night: Snow, mainly before 9pm, then a slight chance of flurries after midnight. Low around 10. Wind chill values as low as -2. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 10 °F

    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Snow likely after noon. Mostly cloudy, with a high near 21. Wind chill values as low as -4. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 21 °F

    Partly Sunny
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely before midnight. Mostly cloudy, with a low around 4. Blustery, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 4 °F

    Snow Likely
    then Mostly
    Cloudy and
    Blustery

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 10. Blustery.

    High: 10 °F

    Cold and
    Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 2.

    Low: 2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 16. West wind around 15 mph, with gusts as high as 25 mph.
Saturday
A slight chance of flurries before 1pm, then snow likely, mainly after 3pm. Cloudy, with a high near 20. Wind chill values as low as 1. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
Snow, mainly before 9pm, then a slight chance of flurries after midnight. Low around 10. Wind chill values as low as -2. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely after noon. Mostly cloudy, with a high near 21. Wind chill values as low as -4. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely before midnight. Mostly cloudy, with a low around 4. Blustery, with a southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
M.L.King Day
Partly sunny and cold, with a high near 10. Blustery.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 18.
Wednesday
Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 13.
Thursday
Mostly sunny, with a high near 20.
Thursday Night
Mostly cloudy, with a low around 9.
Friday
Partly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summit Argo IL
 41.78°N 87.83°W
Last Update:
3:06 am CST Jan 17, 2026
Forecast Valid:
3am CST Jan 17, 2026-6pm CST Jan 23, 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