Riverside County Park Weather Forecast

    • 57
    • 84

    Slight Chance Thunderstorms

    • 59
    • 81

    Chance Rain Showers

    • 61
    • 79

    Rain Showers Likely

    • 60
    • 75

    Chance Rain Showers

    • 58
    • 75

    Chance Rain Showers

    • 55
    • 76

    Partly Sunny

Today 19 Sep Ottawa

Partly sunny in the morning then clearing. Highs in the mid 80s. East Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 19 Sep Ottawa

Partly cloudy with a 20 percent chance of Showers and Thunderstorms. Lows in the upper 50s. East Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverside County Park Temperature Statistics

September Temperature

Muskegon, Muskegon County Airport (14.3 miles)

  • Lowest 8 September, 2025

    39.9 °F

  • Average September

    62.7 °F

  • Highest 14 September, 2025

    84.9 °F

Climate (2020–Present)

Muskegon, Muskegon County Airport (14.3 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    60 °F
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