Lower Eighteenmile Lake Weather Forecast

    • 49
    • 72

    Slight Chance Rain Showers

    • 46
    • 62

    Rain Showers

    • 44
    • 62

    Partly Sunny

    • 45
    • 67

    Mostly Sunny

    • 51
    • 74

    Partly Sunny

    • 49
    • 71

    Partly Sunny

Today 23 Aug Delta

Partly cloudy with a 20 percent chance of Showers. Highs in the lower 70s. Northwest Winds 10 to 15 Mph.

Tonight 23 Aug Delta

Clear in the Evening, then partly cloudy with a chance of Showers after midnight. Lows around 50. West Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lower Eighteenmile Lake Temperature Statistics

August Temperature

Munising - Munising Lakeshore Observation (23 miles)

  • Lowest 1 August, 2025

    46.7 °F

  • Average August

    69.3 °F

  • Highest 8 August, 2025

    92.6 °F

Climate (2020–Present)

Munising - Munising Lakeshore Observation (23 miles)

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  • Average Low 2020–2025

    36.9 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    52.2 °F
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