7-Day Forecast 41.51°N 87.64°W (Text-Only)
NWS Forecast for: Chicago Heights IL
Issued by: National Weather Service Chicago, IL
Last Update: 4:45 am CDT Apr 17, 2026
Print


  • Today

    Today: Widespread dense fog, mainly before 8am.  Otherwise, mostly sunny, with a high near 81. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 81 °F

    Dense Fog
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely. Some of the storms could produce heavy rainfall.  Low around 46. 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 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 46 °F

    Heavy Rain
    and Breezy


  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am.  Cloudy, then gradually becoming mostly sunny, with a high near 51. West northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday
    Night

    Saturday Night: Areas of frost after 5am.  Otherwise, 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
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 7am.  Otherwise, mostly sunny, with a high near 51. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday
    Night

    Sunday Night: Areas of frost after 2am.  Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Partly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Widespread frost, mainly before 7am.  Otherwise, sunny, with a high near 56.

    High: 56 °F

    Frost then
    Sunny


  • Monday
    Night

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

    Low: 46 °F

    Partly Cloudy



  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny





  • Today: Widespread dense fog, mainly before 8am. Otherwise, mostly sunny, with a high near 81. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    Tonight: Showers and thunderstorms before 3am, then showers likely. Some of the storms could produce heavy rainfall. Low around 46. 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 90%. New rainfall amounts between 1 and 2 inches possible.

    Saturday: A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 51. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Saturday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Sunday: Areas of frost before 7am. Otherwise, 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 2am. Otherwise, mostly clear, with a low around 34.

    Monday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 56.

    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 53.

    Wednesday: Mostly sunny, with a high near 74.

    Wednesday Night: Partly cloudy, with a low around 53.

    Thursday: Mostly sunny, with a high near 79.



    Chicago Heights IL
     41.51°N 87.64°W

    Visit your local NWS office at: https://www.weather.gov/lot