Mason Neck National Wildlife Refuge Weather Forecast

    • 63
    • 84

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

    • 71
    • 88

    Chance Rain Showers

    • 71
    • 88

    Rain Showers Likely

    • 71
    • 88

    Slight Chance Thunderstorms

    • 70
    • 87

    Partly Sunny

Today 23 Aug Charles

Mostly sunny. Highs in the mid 80s. West Winds 5 to 10 Mph.

Tonight 23 Aug Charles

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

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  • Temperature Real-Time

Mason Neck National Wildlife Refuge Temperature Statistics

August Temperature

Fort Belvoir (5.6 miles)

  • Lowest 21 August, 2026

    63.7 °F

  • Average August

    79.2 °F

  • Highest 8 August, 2026

    92.8 °F

Climate (2021–2026)

Fort Belvoir (5.6 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.4 °F
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