Occoquan Weather Forecast

    • 61
    • 84

    Slight Chance Thunderstorms

    • 61
    • 85

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 68
    • 87

    Slight Chance Thunderstorms

    • 69
    • 87

    Rain Showers Likely

    • 69
    • 88

    Slight Chance Thunderstorms

Today 23 Aug Fairfax

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 80s. West Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 23 Aug Fairfax

Mostly clear. A slight chance of Showers and Thunderstorms in the evening. Lows in the lower 60s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

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Occoquan Temperature Statistics

August Temperature

Fort Belvoir (4.3 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 (4.3 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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