Potomac River - Hallowing Point Weather Forecast

    • 39
    • 57

    Mostly Sunny

    • 52
    • 57

    Chance Rain Showers

    • 39
    • 64

    Rain

    • 31
    • 45

    Mostly Sunny

    • 33
    • 45

    Mostly Sunny

    • 32
    • 48

    Mostly Sunny

Today 8 Dec Fairfax

Sunny. Highs in the upper 50s. Southeast Winds around 5 Mph.

Tonight 8 Dec Fairfax

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 30s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Hallowing Point Temperature Statistics

December Temperature

Fort Belvoir (6.2 miles)

  • Lowest 1 December, 2023

    30.2 °F

  • Average December

    46.3 °F

  • Highest 3 December, 2023

    57.6 °F

Climate (2018–Present)

Fort Belvoir (6.2 miles)

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  • Average Low 2018–2023

    48.3 °F

  • Average 2018–2023

    58.3 °F

  • Average High 2018–2023

    68.4 °F
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