Straits State Park Weather Forecast
- 66
- 73
Thunderstorms
- 59
- 71
Thunderstorms
- 55
- 66
Rain Showers
- 53
- 60
Rain Showers
- 54
- 65
Mostly Sunny
- 60
- 68
Partly Sunny
Today 22 Aug Eastern Mackinac
Partly sunny. Highs in the mid 70s. Southwest Winds 5 to 15 Mph.
Tonight 22 Aug Eastern Mackinac
Partly cloudy. Lows in the lower 60s. Light Winds.
Straits State Park Temperature Statistics
August Temperature
Mackinac Island Airport (3.7 miles)
Lowest 1 August, 2025
53.6 °FAverage August
69.8 °FHighest 9 August, 2025
89.6 °F
Climate (2020–Present)
Mackinac Island Airport (3.7 miles)
Average Low 2020–2025
38.4 °FAverage 2020–2025
44.8 °FAverage High 2020–2025
51.1 °F