Newington Weather Forecast

    • 70
    • 87

    Decreasing Clouds

    • 57
    • 81

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

    • 64
    • 85

    Mostly Sunny

    • 66
    • 87

    Mostly Sunny

    • 66
    • 87

    Chance Rain Showers

Today 13 Sep Arlington/Falls Church/Alexandria

Mostly sunny. Scattered Showers this morning. Highs in the upper 80s. West Winds around 5 Mph. Chance of rain 50 percent.

Tonight 13 Sep Arlington/Falls Church/Alexandria

Partly cloudy in the Evening, then clearing. Lows around 70. West Winds 5 to 10 Mph.

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Newington Temperature Statistics

September Temperature

Fort Belvoir (1.2 miles)

  • Lowest 8 September, 2026

    58.8 °F

  • Average September

    77 °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

    58.2 °F

  • Average High 2021–2026

    68.4 °F
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