Potomac River - Nomini Bay Weather Forecast
- 73
- 88
Mostly Sunny
- 75
- 90
Mostly Sunny
- 73
- 87
Rain Showers Likely
- 73
- 81
Rain Showers Likely
- 73
- 81
Rain Showers Likely
- 71
- 81
Chance Rain Showers
Today 18 Aug Westmoreland
Partly sunny. Humid with Highs in the upper 80s. North Winds around 5 Mph.
Tonight 18 Aug Westmoreland
Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 70s. North Winds around 5 Mph.
Potomac River - Nomini Bay Temperature Statistics
August Temperature
St Marys County Airport (14.3 miles)
Lowest 1 August, 2026
69.1 °FAverage August
79.7 °FHighest 9 August, 2026
92.3 °F
Climate (2021–2026)
St Marys County Airport (14.3 miles)
Average Low 2021–2026
49.4 °FAverage 2021–2026
58.1 °FAverage High 2021–2026
66.9 °F