Pettys Bayou Weather Forecast

    • 59
    • 65

    Rain Showers

    • 52
    • 67

    Rain Showers

    • 40
    • 64

    Partly Sunny

    • 46
    • 63

    Partly Sunny

    • 41
    • 63

    Mostly Sunny

    • 37
    • 59

    Mostly Sunny

Today 30 Sep Ottawa

Mostly sunny in the morning then becoming partly sunny. A 20 percent chance of rain Showers. Highs in the mid 60s.

Tonight 30 Sep Ottawa

Rain Showers likely in the Evening, then rain Showers and a slight chance of Thunderstorms after midnight. Lows around 60. Southwest Winds 5 to 15 Mph. Gusts up to 30 Mph decreasing to 20 Mph after midnight. Chance of rain 90 percent.

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Pettys Bayou Temperature Statistics

September Temperature

Muskegon, Muskegon County Airport (6.2 miles)

  • Lowest 26 September, 2026

    41.6 °F

  • Average September

    65.3 °F

  • Highest 2 September, 2026

    85.6 °F

Climate (2021–2026)

Muskegon, Muskegon County Airport (6.2 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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