Potomac River - Medleys Creek Entrance Weather Forecast
- 67
- 76
Chance Rain Showers
- 67
- 70
Rain Showers
- 68
- 71
Rain Showers Likely
- 67
- 74
Partly Sunny
- 68
- 80
Mostly Sunny
- 66
- 75
Mostly Cloudy
Today 15 Sep St. Marys
Partly sunny. Highs in the upper 70s. Northeast Winds 10 to 15 Mph.
Tonight 15 Sep St. Marys
Partly cloudy. Lows in the lower 60s. Northeast Winds around 5 Mph.
Potomac River - Medleys Creek Entrance Temperature Statistics
September Temperature
St Marys County Airport (8.1 miles)
Lowest 3 September, 2025
53.2 °FAverage September
68.4 °FHighest 4 September, 2025
86.9 °F
Climate (2020–Present)
St Marys County Airport (8.1 miles)
Average Low 2020–2025
49.6 °FAverage 2020–2025
58.1 °FAverage High 2020–2025
66.7 °F