Mercer Weather Forecast

    • 47
    • 64

    Rain Showers

    • 41
    • 67

    Mostly Sunny

    • 44
    • 68

    Chance Rain Showers

    • 44
    • 71

    Partly Sunny

    • 47
    • 70

    Chance Rain Showers

    • 44
    • 69

    Slight Chance Rain Showers

Today 14 Sep Iron

Mostly sunny late this Morning, then mostly cloudy with Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 60s. South Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon. Chance of rain 90 percent.

Tonight 14 Sep Iron

Showers with a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Not as cool with Lows in the upper 40s. South Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain near 100 percent.

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Mercer Temperature Statistics

September Temperature

Manitowish Waters Airport (9.3 miles)

  • Lowest 10 September, 2026

    46.8 °F

  • Average September

    70.9 °F

  • Highest 1 September, 2026

    92.7 °F

Climate (2021–2026)

Manitowish Waters Airport (9.3 miles)

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  • Average Low 2021–2026

    29.8 °F

  • Average 2021–2026

    40.7 °F

  • Average High 2021–2026

    50.3 °F
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