Potomac River - Port Sunlight Beach Weather Forecast
- 41
- 52
Mostly Cloudy
- 44
- 53
Decreasing Clouds
- 59
- 69
Mostly Cloudy
- 49
- 71
Rain Showers
- 42
- 57
Mostly Sunny
- 51
- 63
Mostly Sunny
- 53
- 71
Mostly Cloudy
Today 13 Mar St. Marys
Partly sunny. Highs in the lower 50s. Northeast Winds 5 to 10 Mph.
Tonight 13 Mar St. Marys
Mostly cloudy. Patchy fog after midnight. Lows in the lower 40s. Northeast Winds 5 to 10 Mph.
Potomac River - Port Sunlight Beach Temperature Statistics
March Temperature
St Marys County Airport (11.8 miles)
Lowest 3 March, 2025
21.2 °FAverage March
44.2 °FHighest 1 March, 2025
68 °F
Climate (2020–Present)
St Marys County Airport (11.8 miles)
Average Low 2020–2025
49.4 °FAverage 2020–2025
57.8 °FAverage High 2020–2025
66.5 °F