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

Tracking Winter Storm and Severe Weather Impacts Through This Weekend

Heavy mountain snow will continue into Thursday afternoon across the Cascades. Two fast moving storms will track from the southern Rockies to the Great Lakes Thursday and then Friday into Sunday with areas of gusty winds, and heavy snow. In the Southeast U.S., severe thunderstorms and heavy to excessive rainfall are forecast on Friday. Read More >

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Fair

42°F

6°C

Humidity 82%
Wind Speed S 10 mph
Barometer 29.87 in (1012.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 8 Jan 12:53 am CST
Extended Forecast for

Summit Argo IL

  • Overnight

    Overnight: Partly cloudy, with a low around 38. South wind around 10 mph.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain, mainly after noon. High near 55. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Mostly Cloudy
    then Rain

  • Thursday Night

    Thursday Night: Rain, mainly before midnight. Low around 46. Breezy, with a south southeast wind around 20 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Breezy. Rain
    then Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before 9am. Mostly cloudy, with a high near 47. Breezy, with a west southwest wind 15 to 20 mph becoming north northeast 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 47 °F

    Slight Chance
    Rain and
    Breezy then
    Mostly Cloudy

  • Friday Night

    Friday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 37. East northeast wind around 5 mph.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely before 3pm, then rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 38. South wind around 10 mph.
Thursday
Rain, mainly after noon. High near 55. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain, mainly before midnight. Low around 46. Breezy, with a south southeast wind around 20 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 20 percent chance of rain before 9am. Mostly cloudy, with a high near 47. Breezy, with a west southwest wind 15 to 20 mph becoming north northeast 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 37. East northeast wind around 5 mph.
Saturday
Rain likely before 3pm, then rain and snow likely. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 38.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 40.
Tuesday Night
A chance of rain. Cloudy, with a low around 31.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit Argo IL
 41.78°N 87.83°W
Last Update:
12:26 am CST Jan 8, 2026
Forecast Valid:
12am CST Jan 8, 2026-6pm CST Jan 14, 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