Grassy Island Weather Forecast
- 63
- 83
Mostly Sunny
- 65
- 83
Rain Showers
- 50
- 69
Rain Showers Likely
- 47
- 63
Mostly Sunny
- 49
- 64
Mostly Sunny
- 53
- 68
Partly Sunny
Today 5 Oct Wayne
Sunny. Highs in the mid 80s. South Winds 5 to 10 Mph.
Tonight 5 Oct Wayne
Mostly clear. Lows in the lower 60s. South Winds 5 to 10 Mph.
Grassy Island Temperature Statistics
October Temperature
Detroit/Grosse Ile, Grosse Ile Airport (8.7 miles)
Lowest 3 October, 2025
51.8 °FAverage October
63.2 °FHighest 3 October, 2025
73.4 °F
Climate (2020–Present)
Detroit/Grosse Ile, Grosse Ile Airport (8.7 miles)
Average Low 2020–2025
44.4 °FAverage 2020–2025
51.5 °FAverage High 2020–2025
59 °F