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Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Fair

40°F

4°C

Humidity 63%
Wind Speed Calm
Barometer 30.27 in (1025.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Apr 12:53 am CDT
Extended Forecast for

Merrionette Park IL

Frost Advisory April 20, 02:00am until April 20, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Overnight

    Overnight: Patchy frost after 2am. Otherwise, mostly clear, with a low around 35. North wind around 5 mph becoming calm.

    Low: 35 °F

    Patchy Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 53 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Breezy.

    High: 79 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy frost after 2am. Otherwise, mostly clear, with a low around 35. North wind around 5 mph becoming calm.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 45. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 73. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 52. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 79. Breezy.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 61.
Friday
Showers likely. Mostly cloudy, with a high near 72.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrionette Park IL
 41.71°N 87.72°W
Last Update:
9:21 pm CDT Apr 19, 2026
Forecast Valid:
1am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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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