HTTP/1.1 200 OK Server: Apache X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Content-Security-Policy: default-src 'none'; style-src 'self' code.jquery.com *.arcgis.com cdn.jsdelivr.net 'unsafe-inline'; script-src-elem 'self' https://*.weather.gov cdn.gov.cfigroup.com *.digitalgov.gov *.google-analytics.com *.arcgis.com code.jquery.com www.googletagmanager.com s.go-mpulse.net 'unsafe-inline'; img-src 'self' data: *.ncep.noaa.gov *.noaa.gov *.weather.gov *.arcgisonline.com *.arcgis.com maps.google.com; connect-src 'self' *.google-analytics.com *.arcgis.com opengeo.ncep.noaa.gov *.weather.gov; font-src 'self' cdn.jsdelivr.net; script-src 'unsafe-eval' 'unsafe-inline' Referrer-Policy: strict-origin-when-cross-origin Strict-Transport-Security: max-age=31536000; includeSubdomains; preload; Access-Control-Allow-Origin: * Content-Type: text/html; charset=UTF-8 Cache-Control: max-age=900 Expires: Fri, 05 Dec 2025 11:03:26 GMT Date: Fri, 05 Dec 2025 10:48:26 GMT Transfer-Encoding: chunked Connection: keep-alive Connection: Transfer-Encoding National Weather Service
National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.06°N 87.93°W (Text-Only)
NWS Forecast for: Mount Prospect IL
Issued by: National Weather Service Chicago, IL
Last Update: 4:11 am CST Dec 5, 2025		Print

  • Today

    Today: Partly sunny, with a high near 26. Wind chill values as low as -5. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F

    Partly Sunny


  • Tonight

    Tonight: Patchy snow and freezing rain between 9pm and 3am. Mostly cloudy, with a low around 24. South southwest wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Patchy Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a temperature falling to around 22 by 5pm. West northwest wind 5 to 10 mph becoming light north northwest in the afternoon.

    High: 26 °F⇓

    Partly Sunny


  • Saturday
    Night

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 18. Calm wind becoming north northwest around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 18 °F

    Slight Chance
    Snow then
    Snow Likely

  • Sunday

    Sunday: Snow likely before noon. Partly sunny, with a high near 27. North northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 27 °F

    Snow Likely
    then Partly
    Sunny

  • Sunday
    Night

    Sunday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 10.

    Low: 10 °F

    Slight Chance
    Snow Showers

  • Monday

    Monday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny


  • Monday
    Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow


  • Tuesday

    Tuesday: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy




    • Today: Partly sunny, with a high near 26. Wind chill values as low as -5. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Tonight: Patchy snow and freezing rain between 9pm and 3am. Mostly cloudy, with a low around 24. South southwest wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    Saturday: Partly sunny, with a temperature falling to around 22 by 5pm. West northwest wind 5 to 10 mph becoming light north northwest in the afternoon.

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 18. Calm wind becoming north northwest around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Sunday: Snow likely before noon. Partly sunny, with a high near 27. North northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Sunday Night: A 20 percent chance of snow showers. Mostly cloudy, with a low around 10.

    Monday: Partly sunny, with a high near 23.

    Monday Night: A chance of snow. Mostly cloudy, with a low around 15.

    Tuesday: Mostly cloudy, with a high near 35.

    Tuesday Night: Rain and snow likely before midnight, then rain. Cloudy, with a low around 29.

    Wednesday: A chance of rain and snow. Cloudy, with a high near 36.

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 14.

    Thursday: A chance of snow. Partly sunny, with a high near 23.


    Mount Prospect IL
     42.06°N 87.93°W

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