Newington Weather Forecast

    • 68
    • 87

    Rain Showers Likely

    • 66
    • 82

    Mostly Cloudy

    • 66
    • 83

    Partly Sunny

    • 71
    • 89

    Sunny

    • 75
    • 97

    Hot

    • 73
    • 95

    Slight Chance Thunderstorms

Today 11 Jul Arlington/Falls Church/Alexandria

Partly sunny late this Morning, then mostly cloudy with a chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

Tonight 11 Jul Arlington/Falls Church/Alexandria

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. Northeast Winds around 5 Mph. Chance of rain 60 percent.

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Newington Temperature Statistics

July Temperature

Fort Belvoir (1.2 miles)

  • Lowest 1 July, 2026

    72.3 °F

  • Average July

    83 °F

  • Highest 4 July, 2026

    101.3 °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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