Potomac River - Chapmans Point Weather Forecast

    • 65
    • 72

    Mostly Cloudy

    • 64
    • 77

    Decreasing Clouds

    • 67
    • 81

    Partly Sunny

    • 67
    • 85

    Mostly Sunny

    • 67
    • 86

    Slight Chance Rain Showers

    • 65
    • 73

    Chance Rain Showers

    • 59
    • 71

    Chance Rain Showers

Today 28 Sep Charles

Partly sunny with a 30 percent chance of Showers. Highs in the upper 60s.

Tonight 28 Sep Charles

Mostly cloudy. Lows in the lower 60s. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Chapmans Point Temperature Statistics

September Temperature

Fort Belvoir (5.6 miles)

  • Lowest 25 September, 2026

    52 °F

  • Average September

    72.7 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (5.6 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.3 °F
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