Newington Weather Forecast

    • 75
    • 94

    Thunderstorms

    • 73
    • 91

    Rain Showers Likely

    • 66
    • 85

    Chance Rain Showers

    • 62
    • 83

    Mostly Sunny

    • 62
    • 82

    Partly Sunny

    • 64
    • 85

    Partly Sunny

    • 71
    • 88

    Partly Sunny

Today 3 Sep Arlington/Falls Church/Alexandria

Partly sunny with isolated Showers and Thunderstorms. Highs in the mid 90s. West Winds around 5 Mph. Chance of rain 20 percent.

Tonight 3 Sep Arlington/Falls Church/Alexandria

Mostly cloudy with scattered Showers. Scattered Thunderstorms, mainly in the evening. Lows in the mid 70s. West Winds around 5 Mph. Chance of rain 40 percent.

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Newington Temperature Statistics

September Temperature

Fort Belvoir (1.2 miles)

  • Lowest 1 September, 2026

    72.9 °F

  • Average September

    83.1 °F

  • Highest 1 September, 2026

    96.4 °F

Climate (2021–2026)

Fort Belvoir (1.2 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    68.3 °F
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