Potomac River - Saint Margaret Island Weather Forecast
- 42
- 46
Mostly Cloudy
- 53
- 57
Mostly Cloudy
- 51
- 69
Rain Showers
- 42
- 55
Slight Chance Rain Showers
- 48
- 62
Mostly Sunny
- 54
- 67
Mostly Cloudy
- 41
- 67
Chance Rain Showers
Today 14 Mar St. Marys
Partly sunny. Highs around 50. Southeast Winds 5 to 10 Mph.
Tonight 14 Mar St. Marys
Mostly cloudy with a slight chance of very light drizzle. Patchy fog after midnight. Visibility one quarter mile or less at Times after midnight. Lows in the lower 40s. Southeast Winds around 5 Mph.
Potomac River - Saint Margaret Island Temperature Statistics
March Temperature
St Marys County Airport (14.3 miles)
Lowest 3 March, 2025
21.2 °FAverage March
44.9 °FHighest 1 March, 2025
68 °F
Climate (2020–Present)
St Marys County Airport (14.3 miles)
Average Low 2020–2025
49.4 °FAverage 2020–2025
57.8 °FAverage High 2020–2025
66.5 °F