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 Snow

19°F

-7°C

Humidity 57%
Wind Speed W 13 mph
Barometer 29.92 in (1015.0 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 18 Jan 3:53 pm CST
Extended Forecast for

Westchester IL

Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory

  • This Afternoon

    This Afternoon: Snow. High near 19. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 19 °F

    Snow

  • Tonight

    Tonight: Snow before midnight, then scattered snow showers, mainly between midnight and 2am. Low around 2. Wind chill values as low as -18. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 2 °F

    Snow then
    Scattered
    Snow Showers
    and Blustery

  • M.L.King Day

    M.L.King Day: Isolated snow showers before 7am. Mostly sunny and cold, with a high near 7. Wind chill values as low as -22. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 7 °F

    Blustery.
    Isolated Snow
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 4. Wind chill values as low as -11. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 4 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 21. West wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 21 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Slight Chance
    Snow then
    Chance Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 30.

    High: 30 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 18.

    High: 18 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Snow. High near 19. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow before midnight, then scattered snow showers, mainly between midnight and 2am. Low around 2. Wind chill values as low as -18. Blustery, with a southwest wind 10 to 15 mph becoming west northwest 20 to 25 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
M.L.King Day
Isolated snow showers before 7am. Mostly sunny and cold, with a high near 7. Wind chill values as low as -22. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 4. Wind chill values as low as -11. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 21. West wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 14.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 11.
Thursday
Mostly sunny, with a high near 18.
Thursday Night
Mostly cloudy, with a low around 7.
Friday
Partly sunny, with a high near 19.
Friday Night
A chance of snow. Mostly cloudy, with a low around 3.
Saturday
A chance of snow. Mostly cloudy, with a high near 12.
Saturday Night
A chance of snow. Mostly cloudy, with a low around -2.
Sunday
A chance of snow. Partly sunny and cold, with a high near 10.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westchester IL
 41.84°N 87.88°W
Last Update:
4:01 pm CST Jan 18, 2026
Forecast Valid:
4pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation