Grand Haven State Park Weather Forecast

    • 66
    • 78

    Mostly Sunny

    • 66
    • 74

    Mostly Sunny

    • 65
    • 74

    Mostly Sunny

    • 60
    • 69

    Chance Rain Showers

    • 49
    • 63

    Chance Rain Showers

    • 45
    • 56

    Mostly Sunny

Today 3 Oct Ottawa

Sunny. Highs in the mid 80s. South Winds around 10 Mph becoming southwest in the afternoon.

Tonight 3 Oct Ottawa

Mostly clear. Lows in the lower 60s. Light Winds becoming south 5 to 10 Mph after midnight.

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Grand Haven State Park Temperature Statistics

October Temperature

Muskegon, Muskegon County Airport (7.5 miles)

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  • Average October

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Climate (2020–Present)

Muskegon, Muskegon County Airport (7.5 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    60.1 °F
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