Potomac River - Gunston Cove Weather Forecast
- 62
- 83
Sunny
- 64
- 87
Mostly Sunny
- 64
- 79
Mostly Cloudy
- 62
- 77
Slight Chance Thunderstorms
- 63
- 80
Partly Sunny
- 66
- 83
Mostly Cloudy
Today 18 Sep Charles
Sunny. Highs in the lower 80s. West Winds around 5 Mph.
Tonight 18 Sep Charles
Clear. Lows around 60. Southwest Winds around 5 Mph.
Potomac River - Gunston Cove Temperature Statistics
September Temperature
Fort Belvoir (3.7 miles)
Lowest 9 September, 2025
49.8 °FAverage September
67.8 °FHighest 6 September, 2025
92.7 °F
Climate (2020–Present)
Fort Belvoir (3.7 miles)
Average Low 2020–2025
47.8 °FAverage 2020–2025
58.1 °FAverage High 2020–2025
68.3 °F