Hart Lake Weather Forecast

    • 75
    • 95

    Becoming Sunny

    • 75
    • 96

    Mostly Sunny

    • 71
    • 95

    Chance Thunderstorms

    • 68
    • 93

    Chance Thunderstorms

    • 65
    • 90

    Chance Thunderstorms

    • 63
    • 87

    Chance Thunderstorms

Today 30 Jun Eaton

Mostly sunny. Highs in the mid 90s. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph. Heat index Readings 100 to 105.

Tonight 30 Jun Eaton

Mostly clear. Lows in the mid 70s. Southwest Winds 5 to 15 Mph with Gusts to around 25 Mph.

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Hart Lake Temperature Statistics

June Temperature

Ionia County Airport (13.7 miles)

  • Lowest 2 June, 2026

    44.6 °F

  • Average June

    67.5 °F

  • Highest 10 June, 2026

    89.6 °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

    58.9 °F
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