Newington Weather Forecast

    • 69
    • 90

    Rain Showers

    • 68
    • 84

    Mostly Cloudy

    • 70
    • 83

    Rain Showers Likely

    • 69
    • 86

    Slight Chance Thunderstorms

    • 68
    • 86

    Partly Sunny

    • 71
    • 87

    Mostly Sunny

Today 10 Sep Arlington/Falls Church/Alexandria

Partly sunny. A slight chance of Showers in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Hot with Highs around 90. West Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 10 Sep Arlington/Falls Church/Alexandria

A chance of Thunderstorms. Showers, mainly in the evening. Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 80 percent.

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Newington Temperature Statistics

September Temperature

Fort Belvoir (1.2 miles)

  • Lowest 7 September, 2026

    61.2 °F

  • Average September

    77.2 °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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