7-Day Forecast 42.2°N 88.03°W (Text-Only)
NWS Forecast for: Forest Lake IL
Issued by: National Weather Service Chicago, IL
Last Update: 5:26 am CDT Apr 11, 2026
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  • Today

    Today: Patchy fog before 8am.  Otherwise, increasing clouds, with a high near 55. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 55 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 5am.  Mostly cloudy, with a low around 47. East southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Chance
    Showers


  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 10am.  Mostly cloudy, with a high near 74. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph.  Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers and
    Breezy

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm.  Low around 61. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%.

    Low: 61 °F

    Showers and
    Breezy


  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 78. Southwest wind around 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday
    Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms


  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 81.

    High: 81 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday
    Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers.  Mostly cloudy, with a low around 63.

    Low: 63 °F

    Showers



  • Wednesday

    Wednesday: A chance of showers.  Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers


  • Today: Patchy fog before 8am. Otherwise, increasing clouds, with a high near 55. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Tonight: A 40 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 47. East southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Sunday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 74. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 50%.

    Sunday Night: Showers and possibly a thunderstorm. Low around 61. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78. Southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81.

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63.

    Wednesday: A chance of showers. Partly sunny, with a high near 77.

    Wednesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 58.

    Thursday: A chance of showers. Partly sunny, with a high near 77.

    Thursday Night: A chance of showers. Partly cloudy, with a low around 57.

    Friday: A chance of showers. Partly sunny, with a high near 74.



    Forest Lake IL
     42.2°N 88.03°W

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