Newington Weather Forecast

    • 63
    • 87

    Mostly Sunny

    • 71
    • 88

    Mostly Sunny

    • 69
    • 90

    Chance Thunderstorms

    • 66
    • 83

    Partly Sunny

    • 68
    • 83

    Chance Rain Showers

    • 68
    • 87

    Partly Sunny

Today 8 Sep Arlington/Falls Church/Alexandria

Mostly sunny. Highs in the upper 80s. Southwest Winds around 5 Mph.

Tonight 8 Sep Arlington/Falls Church/Alexandria

Mostly clear. Lows in the mid 60s. South Winds around 5 Mph.

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Newington Temperature Statistics

September Temperature

Fort Belvoir (1.2 miles)

  • Lowest 5 September, 2026

    69.1 °F

  • Average September

    79.1 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (1.2 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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