Potomac River - Saint Margaret Island Weather Forecast
- 26
- 37
Mostly Sunny
- 34
- 50
Partly Sunny
- 37
- 45
Rain Likely
- 37
- 46
Chance Rain
- 42
- 53
Mostly Cloudy
- 45
- 55
Chance Rain
- 42
- 57
Chance Rain
Today 13 Feb St. Marys
Sunny. Highs in the upper 30s. Northwest Winds 5 to 10 Mph.
Tonight 13 Feb St. Marys
Mostly clear. Lows in the mid 20s. Southwest Winds around 5 Mph.
Potomac River - Saint Margaret Island Temperature Statistics
February Temperature
St Marys County Airport (14.3 miles)
Lowest 9 February, 2026
11.7 °FAverage February
28.6 °FHighest 11 February, 2026
52 °F
Climate (2021–Present)
St Marys County Airport (14.3 miles)
Average Low 2021–2026
49.2 °FAverage 2021–2026
57.8 °FAverage High 2021–2026
66.5 °F