Newington Weather Forecast

    • 67
    • 82

    Chance Rain Showers

    • 69
    • 84

    Rain Showers Likely

    • 68
    • 86

    Slight Chance Thunderstorms

    • 62
    • 83

    Partly Sunny

    • 65
    • 81

    Mostly Sunny

    • 66
    • 87

    Partly Sunny

Today 11 Sep Arlington/Falls Church/Alexandria

Mostly cloudy. Showers likely in the morning. Highs in the lower 80s. Northeast Winds around 5 Mph. Chance of rain 60 percent.

Tonight 11 Sep Arlington/Falls Church/Alexandria

Mostly cloudy. Lows in the upper 60s. Light and variable Winds, becoming southeast around 5 Mph after midnight.

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Newington Temperature Statistics

September Temperature

Fort Belvoir (1.2 miles)

  • Lowest 8 September, 2026

    58.8 °F

  • Average September

    76.5 °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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