Mercer Lake Weather Forecast

    • 52
    • 69

    Chance Thunderstorms

    • 53
    • 67

    Chance Thunderstorms

    • 54
    • 66

    Rain Showers Likely

    • 54
    • 69

    Chance Thunderstorms

    • 53
    • 71

    Chance Rain Showers

    • 50
    • 68

    Slight Chance Rain Showers

Today 18 Sep Iron

Mostly cloudy with a slight chance of Showers and Thunderstorms. Cooler. Near steady temperature in the upper 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 Sep Iron

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the lower 50s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercer Lake Temperature Statistics

September Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 7 September, 2025

    36.9 °F

  • Average September

    56.8 °F

  • Highest 16 September, 2025

    81.5 °F

Climate (2020–Present)

Manitowish Waters Airport (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    40.5 °F

  • Average High 2020–2025

    50.1 °F
Get WillyWeather+ to remove ads