Grassy Island Weather Forecast

    • 50
    • 69

    Mostly Sunny

    • 57
    • 70

    Mostly Sunny

    • 61
    • 76

    Partly Sunny

    • 57
    • 69

    Slight Chance Rain

    • 56
    • 74

    Mostly Cloudy

    • 46
    • 66

    Mostly Cloudy

Today 8 Oct Wayne

Sunny. Highs in the upper 60s. West Winds 5 to 15 Mph with Gusts up to 25 Mph.

Tonight 8 Oct Wayne

Clear. Lows in the upper 40s. West Winds 5 to 10 Mph.

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Grassy Island Temperature Statistics

October Temperature

Detroit/Grosse Ile, Grosse Ile Airport (8.7 miles)

  • Lowest 6 October, 2026

    41 °F

  • Average October

    59.2 °F

  • Highest 1 October, 2026

    78.8 °F

Climate (2021–2026)

Detroit/Grosse Ile, Grosse Ile Airport (8.7 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    58.9 °F
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