Grand Haven State Park Weather Forecast

    • 64
    • 78

    Slight Chance Thunderstorms

    • 70
    • 78

    Rain Showers Likely

    • 66
    • 75

    Slight Chance Thunderstorms

    • 63
    • 73

    Mostly Sunny

    • 65
    • 75

    Sunny

    • 69
    • 75

    Mostly Sunny

Today 17 Aug Ottawa

Partly sunny until midday then becoming mostly sunny. Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 17 Aug Ottawa

Partly cloudy. A 20 percent chance of Showers and Thunderstorms overnight. Lows in the lower 60s. East Winds 5 to 10 Mph with Gusts to around 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Haven State Park Temperature Statistics

August Temperature

Muskegon, Muskegon County Airport (7.5 miles)

  • Lowest 2 August, 2025

    53.7 °F

  • Average August

    74.7 °F

  • Highest 8 August, 2025

    91.7 °F

Climate (2020–Present)

Muskegon, Muskegon County Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    60 °F
Get WillyWeather+ to remove ads