National Harbor Weather Forecast

    • 46
    • 66

    Sunny

    • 54
    • 70

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 53
    • 73

    Partly Sunny

    • 56
    • 71

    Mostly Cloudy

    • 61
    • 69

    Chance Rain Showers

    • 60
    • 71

    Slight Chance Rain Showers

Today 6 Oct Arlington/Falls Church/Alexandria

Sunny. Highs in the mid 60s. Northwest Winds around 5 Mph.

Tonight 6 Oct Arlington/Falls Church/Alexandria

Clear. Lows in the upper 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

National Harbor Temperature Statistics

October Temperature

Washington/Reagan National Airport, DC (4.3 miles)

  • Lowest 3 October, 2026

    60.1 °F

  • Average October

    68.9 °F

  • Highest 2 October, 2026

    86.6 °F

Climate (2021–2026)

Washington/Reagan National Airport, DC (4.3 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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