Potomac River - Chapmans Point Weather Forecast

    • 31
    • 38

    Mostly Sunny

    • 33
    • 51

    Partly Sunny

    • 43
    • 57

    Rain

    • 30
    • 49

    Breezy

    • 40
    • 44

    Partly Sunny

    • 35
    • 52

    Slight Chance Rain

Today 16 Dec Charles

Sunny. Highs in the upper 30s. Northwest Winds around 5 Mph, becoming south in the afternoon.

Tonight 16 Dec Charles

Mostly clear. Lows around 19. Southwest Winds around 5 Mph with Gusts up to 20 Mph.

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Potomac River - Chapmans Point Temperature Statistics

December Temperature

Fort Belvoir (5.6 miles)

  • Lowest 9 December, 2025

    17.4 °F

  • Average December

    34.8 °F

  • Highest 4 December, 2025

    47.5 °F

Climate (2020–Present)

Fort Belvoir (5.6 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.2 °F
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