St Marys River State Park Weather Forecast
- 62
- 85
Partly Cloudy
- 61
- 79
Partly Sunny
- 60
- 76
Mostly Sunny
- 63
- 79
Partly Sunny
- 59
- 78
Partly Sunny
- 58
- 75
Mostly Sunny
- 61
- 76
Partly Sunny
Today 25 Aug St. Marys
Mostly sunny. Highs in the mid 80s. West Winds 5 to 10 Mph.
Tonight 25 Aug St. Marys
Partly cloudy. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.
St Marys River State Park Temperature Statistics
August Temperature
St Marys County Airport (3.1 miles)
Lowest 4 August, 2025
55.4 °FAverage August
72.3 °FHighest 17 August, 2025
90.5 °F
Climate (2020–Present)
St Marys County Airport (3.1 miles)
Average Low 2020–2025
49.6 °FAverage 2020–2025
58 °FAverage High 2020–2025
66.7 °F