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.

Mostly Cloudy and Breezy

80°F

27°C

Humidity 54%
Wind Speed S 24 G 40 mph
Barometer 29.75 in (1007.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Apr 2:53 pm CDT
Extended Forecast for

Westmont IL

Flood Watch until April 18, 05:00am
Tornado Watch until April 17, 11:00pm
Click here for hazard details and duration
Flood Watch
Tornado Watch
  •  
    Flood Watch until April 18, 05:00am
    Tornado Watch until April 17, 11:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 81 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers likely. Some of the storms could be severe. Low around 44. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 44 °F

    Severe
    Thunderstorms
    and Breezy
    then Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 8am. Partly sunny, with a steady temperature around 48. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Chance
    Showers then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 51. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 7am. Otherwise, sunny, with a high near 55.

    High: 55 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Some of the storms could be severe. Mostly sunny, with a high near 81. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.
Tonight
Showers and thunderstorms before 2am, then showers likely. Some of the storms could be severe. Low around 44. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 30 percent chance of showers, mainly before 8am. Partly sunny, with a steady temperature around 48. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 35. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 51. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 33.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westmont IL
 41.8°N 87.97°W
Last Update:
3:36 pm CDT Apr 17, 2026
Forecast Valid:
3pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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