Chesapeake Bay - Flag Harbor Weather Forecast
- 41
- 49
Mostly Cloudy
- 43
- 51
Mostly Cloudy
- 54
- 62
Rain Showers Likely
- 48
- 68
Rain Showers
- 41
- 55
Mostly Sunny
- 49
- 61
Mostly Sunny
- 51
- 67
Partly Sunny
Today 13 Mar Calvert
Partly sunny. Highs in the lower 50s. Northeast Winds 5 to 10 Mph.
Tonight 13 Mar Calvert
Mostly cloudy. Patchy fog after midnight. Lows around 40. Northeast Winds 5 to 10 Mph.
Chesapeake Bay - Flag Harbor Temperature Statistics
March Temperature
St Marys County Airport (10.6 miles)
Lowest 3 March, 2025
21.2 °FAverage March
44.2 °FHighest 1 March, 2025
68 °F
Climate (2020–Present)
St Marys County Airport (10.6 miles)
Average Low 2020–2025
49.4 °FAverage 2020–2025
57.8 °FAverage High 2020–2025
66.5 °F