Potomac River - Chapman Point Weather Forecast

    • 39
    • 53

    Decreasing Clouds

    • 52
    • 64

    Chance Rain Showers

    • 48
    • 67

    Partly Sunny

    • 48
    • 71

    Chance Rain

    • 33
    • 56

    Slight Chance Rain

    • 36
    • 47

    Mostly Cloudy

Today 19 Mar Charles

Partly sunny. Highs in the mid 50s. South Winds around 5 Mph.

Tonight 19 Mar Charles

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 30s. Southeast Winds around 5 Mph, becoming southwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Chapman Point Temperature Statistics

March Temperature

Fort Belvoir (6.8 miles)

  • Lowest 13 March, 2026

    25.3 °F

  • Average March

    52.1 °F

  • Highest 11 March, 2026

    86.5 °F

Climate (2021–Present)

Fort Belvoir (6.8 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    68.2 °F
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