Hart Lake Weather Forecast

    • 55
    • 68

    Decreasing Clouds

    • 50
    • 73

    Partly Sunny

    • 42
    • 65

    Mostly Sunny

    • 51
    • 67

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 53
    • 75

    Partly Sunny

    • 51
    • 73

    Partly Sunny

Today 6 Oct Eaton

Partly sunny with a 30 percent chance of rain Showers. Highs in the upper 60s.

Tonight 6 Oct Eaton

Partly cloudy. Lows in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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Hart Lake Temperature Statistics

October Temperature

Ionia County Airport (13.7 miles)

  • Lowest 3 October, 2026

    42.8 °F

  • Average October

    58.1 °F

  • Highest 1 October, 2026

    69.8 °F

Climate (2021–2026)

Ionia County Airport (13.7 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59 °F
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