Newington Weather Forecast

    • 71
    • 91

    Severe Tstms

    • 65
    • 86

    Chance Thunderstorms

    • 63
    • 81

    Mostly Sunny

    • 65
    • 81

    Partly Sunny

    • 66
    • 82

    Partly Sunny

    • 69
    • 87

    Slight Chance Thunderstorms

Today 21 Jul Arlington/Falls Church/Alexandria

Mostly cloudy. Scattered Showers with isolated Thunderstorms in the Morning, then numerous Showers and Thunderstorms in the afternoon. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy rainfall in the afternoon. Highs in the lower 90s. Southwest Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 21 Jul Arlington/Falls Church/Alexandria

Numerous Showers and Thunderstorms in the Evening, then numerous Showers and scattered Thunderstorms after midnight. Some Thunderstorms may produce damaging Winds, large Hail, and heavy rainfall in the evening. Lows in the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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Newington Temperature Statistics

July Temperature

Fort Belvoir (1.2 miles)

  • Lowest 13 July, 2026

    62.4 °F

  • Average July

    81.4 °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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