Potomac River - Hallowing Point Weather Forecast

    • 33
    • 63

    Rain Showers

    • 32
    • 48

    Mostly Sunny

    • 47
    • 56

    Partly Sunny

    • 54
    • 64

    Slight Chance Rain

    • 62
    • 74

    Slight Chance Rain

    • 62
    • 80

    Chance Rain

Today 27 Mar Charles

Cloudy. Scattered Showers this Morning, then Showers this afternoon. Highs in the mid 60s. Temperature falling into the upper 40s this afternoon. Northwest Winds 5 to 10 Mph, becoming north this afternoon. Chance of rain 90 percent.

Tonight 27 Mar Charles

Mostly cloudy with numerous rain Showers in the Evening, then partly cloudy with scattered Sprinkles and Flurries after midnight. Much cooler with Lows in the lower 30s. North Winds 10 to 15 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Hallowing Point Temperature Statistics

March Temperature

Fort Belvoir (6.2 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 (6.2 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58 °F

  • Average High 2021–2026

    68.2 °F
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