Grousehaven Lake Weather Forecast

    • 42
    • 69

    Becoming Sunny

    • 44
    • 72

    Mostly Sunny

    • 45
    • 73

    Mostly Sunny

    • 45
    • 74

    Mostly Sunny

    • 54
    • 73

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

Today 25 Sep Ogemaw

Partly sunny. Areas of fog early. Highs in the upper 60s. Light Winds.

Tonight 25 Sep Ogemaw

Clear early then becoming partly cloudy. Areas of fog. Lows in the lower 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grousehaven Lake Temperature Statistics

September Temperature

Oscoda, Oscoda-Wurtsmith Airport (32.3 miles)

  • Lowest 14 September, 2026

    42.8 °F

  • Average September

    63.7 °F

  • Highest 2 September, 2026

    84.2 °F

Climate (2021–2026)

Oscoda, Oscoda-Wurtsmith Airport (32.3 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    46.8 °F

  • Average High 2021–2026

    55.7 °F
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