Newington Weather Forecast

    • 73
    • 88

    Chance Thunderstorms

    • 73
    • 90

    Chance Rain Showers

    • 72
    • 90

    Chance Thunderstorms

    • 72
    • 90

    Chance Thunderstorms

    • 73
    • 91

    Mostly Sunny

    • 74
    • 93

    Slight Chance Thunderstorms

Today 5 Aug Arlington/Falls Church/Alexandria

Mostly cloudy late this Morning, then becoming partly sunny. A chance of Showers. A slight chance of Thunderstorms late this Morning, then a chance of Thunderstorms this afternoon. Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 5 Aug Arlington/Falls Church/Alexandria

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 20 percent.

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Newington Temperature Statistics

August Temperature

Fort Belvoir (1.2 miles)

  • Lowest 1 August, 2026

    65.5 °F

  • Average August

    78.6 °F

  • Highest 1 August, 2026

    90.7 °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

    68.3 °F
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