Mercer Lake Weather Forecast

    • 42
    • 68

    Rain Showers

    • 32
    • 49

    Mostly Cloudy

    • 34
    • 55

    Partly Sunny

    • 40
    • 65

    Mostly Cloudy

    • 44
    • 67

    Chance Rain Showers

    • 47
    • 71

    Chance Rain Showers

Today 18 May Iron

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the mid 60s. Southwest Winds 5 to 10 Mph, becoming northwest in the afternoon. Chance of rain 40 percent.

Tonight 18 May Iron

Showers with a chance of Thunderstorms. Not as cool with Lows around 50. Temperature rising into the upper 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercer Lake Temperature Statistics

May Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 2 May, 2026

    22.8 °F

  • Average May

    44.6 °F

  • Highest 15 May, 2026

    80.4 °F

Climate (2021–Present)

Manitowish Waters Airport (9.3 miles)

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  • Average Low 2021–2026

    29.6 °F

  • Average 2021–2026

    40.6 °F

  • Average High 2021–2026

    50.2 °F
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