Newington Weather Forecast

    • 69
    • 83

    Rain Showers

    • 69
    • 87

    Chance Rain Showers

    • 58
    • 81

    Mostly Sunny

    • 61
    • 78

    Mostly Sunny

    • 64
    • 83

    Mostly Sunny

    • 66
    • 87

    Chance Rain Showers

Today 12 Sep Arlington/Falls Church/Alexandria

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower 80s. Southeast Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 12 Sep Arlington/Falls Church/Alexandria

Showers with a chance of Thunderstorms. Patchy fog. Lows around 70. South Winds around 5 Mph. Chance of rain 90 percent.

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Newington Temperature Statistics

September Temperature

Fort Belvoir (1.2 miles)

  • Lowest 8 September, 2026

    58.8 °F

  • Average September

    76.6 °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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