Ionia Lake Weather Forecast

    • 45
    • 69

    Mostly Sunny

    • 63
    • 83

    Partly Sunny

    • 51
    • 75

    Chance Rain Showers

    • 46
    • 68

    Chance Rain Showers

    • 53
    • 71

    Rain Showers

    • 47
    • 70

    Mostly Cloudy

Today 10 Sep Alger

Cooler, sunny. Highs around 69. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 10 Sep Alger

Clear. Lows around 46 inland to around 53 at the shore. South Winds 5 to 10 Mph.

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Ionia Lake Temperature Statistics

September Temperature

Munising - Munising Lakeshore Observation (19.9 miles)

  • Lowest 6 September, 2026

    48.9 °F

  • Average September

    65.2 °F

  • Highest 1 September, 2026

    89.1 °F

Climate (2021–2026)

Munising - Munising Lakeshore Observation (19.9 miles)

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  • Average Low 2021–2026

    36.8 °F

  • Average 2021–2026

    44.4 °F

  • Average High 2021–2026

    51.9 °F
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