Mill Creek Park Weather Forecast

    • 53
    • 62

    Chance Rain

    • 50
    • 64

    Mostly Cloudy

    • 53
    • 68

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 55
    • 72

    Partly Sunny

Today 23 Sep Arlington/Falls Church/Alexandria

Cloudy. Rain Likely, mainly in the morning. Highs in the lower 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Tonight 23 Sep Arlington/Falls Church/Alexandria

Mostly cloudy. Lows in the mid 50s. Northeast Winds around 10 Mph with Gusts up to 20 Mph.

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Mill Creek Park Temperature Statistics

September Temperature

Fort Belvoir (8.7 miles)

  • Lowest 15 September, 2026

    53.8 °F

  • Average September

    75.6 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (8.7 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    68.4 °F
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