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.

Mostly Cloudy

38°F

3°C

Humidity 60%
Wind Speed E 9 mph
Barometer 29.88 in (1012.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 15 Mar 12:53 am CDT
Extended Forecast for

Westchester IL

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a low around 35. East southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 60. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: Rain and snow showers, becoming all snow after 3am. Some thunder is also possible. Patchy blowing snow after 4am. Low around 24. Blustery, with a south southwest wind 20 to 25 mph becoming west northwest in the evening. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow showers likely, mainly before 1pm. Patchy blowing snow. Cloudy, with a high near 24. Windy, with a west northwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 24 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 30 mph.

    Low: 12 °F

    Cloudy and
    Blustery then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 35. East southeast wind around 15 mph, with gusts as high as 25 mph.
Sunday
Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 60. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain and snow showers, becoming all snow after 3am. Some thunder is also possible. Patchy blowing snow after 4am. Low around 24. Blustery, with a south southwest wind 20 to 25 mph becoming west northwest in the evening. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Monday
Snow showers likely, mainly before 1pm. Patchy blowing snow. Cloudy, with a high near 24. Windy, with a west northwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Mostly cloudy, with a low around 12. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 51.
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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:
1:21 am CDT Mar 15, 2026
Forecast Valid:
1am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation