Riverside County Park Weather Forecast

    • 49
    • 66

    Decreasing Clouds

    • 47
    • 68

    Mostly Sunny

    • 45
    • 67

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

    • 49
    • 66

    Mostly Cloudy

    • 51
    • 69

    Partly Sunny

Today 23 Sep Ottawa

Mostly sunny. Highs in the mid 60s. East Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 23 Sep Ottawa

Partly cloudy. Lows in the upper 40s. East Winds 5 to 10 Mph with Gusts to around 25 Mph.

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Riverside County Park Temperature Statistics

September Temperature

Muskegon, Muskegon County Airport (14.3 miles)

  • Lowest 14 September, 2026

    46.7 °F

  • Average September

    68 °F

  • Highest 2 September, 2026

    85.6 °F

Climate (2021–2026)

Muskegon, Muskegon County Airport (14.3 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    60 °F
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