George Washington University Weather Forecast

    • 61
    • 77

    Rain Showers

    • 57
    • 66

    Rain Showers

    • 56
    • 65

    Chance Rain Showers

    • 53
    • 65

    Slight Chance Rain Showers

    • 54
    • 66

    Mostly Cloudy

    • 56
    • 67

    Mostly Cloudy

Today 21 Sep District of Columbia

Partly sunny this Morning, then becoming mostly cloudy. A chance of Showers this afternoon. Highs in the mid 70s. Northeast Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 21 Sep District of Columbia

Showers likely in the Evening, then Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 80 percent.

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George Washington University Temperature Statistics

September Temperature

Washington/Reagan National Airport, DC (3.1 miles)

  • Lowest 15 September, 2026

    58.6 °F

  • Average September

    78.5 °F

  • Highest 1 September, 2026

    98.7 °F

Climate (2021–2026)

Washington/Reagan National Airport, DC (3.1 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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