Potomac River - Marbury Point Weather Forecast
- 64
- 81
Mostly Sunny
- 66
- 86
Chance Thunderstorms
- 71
- 88
Mostly Sunny
- 63
- 86
Rain Showers Likely
- 57
- 74
Partly Sunny
- 56
- 75
Partly Sunny
- 58
- 75
Mostly Cloudy
Today 3 Sep District of Columbia
Mostly sunny. Highs in the lower 80s. South Winds around 5 Mph.
Tonight 3 Sep District of Columbia
Mostly clear. Lows in the lower 60s. South Winds around 5 Mph.
Potomac River - Marbury Point Temperature Statistics
September Temperature
Washington/Reagan National Airport, DC (1.9 miles)
Lowest 1 September, 2025
59 °FAverage September
70.3 °FHighest 1 September, 2025
80.1 °F
Climate (2020–Present)
Washington/Reagan National Airport, DC (1.9 miles)
Average Low 2020–2025
52.6 °FAverage 2020–2025
60.4 °FAverage High 2020–2025
69.2 °F