McLean Weather Forecast

    • 64
    • 83

    Mostly Cloudy

    • 66
    • 82

    Partly Sunny

    • 69
    • 88

    Slight Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 70
    • 90

    Rain Showers Likely

    • 68
    • 87

    Slight Chance Thunderstorms

Today 24 Jul Arlington/Falls Church/Alexandria

Mostly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 24 Jul Arlington/Falls Church/Alexandria

Mostly cloudy. Lows in the mid 60s. East Winds 5 to 10 Mph.

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McLean Temperature Statistics

July Temperature

Washington/Reagan National Airport, DC (9.3 miles)

  • Lowest 13 July, 2026

    69.7 °F

  • Average July

    84.1 °F

  • Highest 4 July, 2026

    103.6 °F

Climate (2021–2026)

Washington/Reagan National Airport, DC (9.3 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    69.3 °F
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