Naval Observatory Weather Forecast

    • 73
    • 92

    Chance Thunderstorms

    • 66
    • 84

    Chance Rain Showers

    • 63
    • 82

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 65
    • 85

    Partly Sunny

    • 72
    • 88

    Partly Sunny

Today 4 Sep District of Columbia

Sunny in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall in the afternoon. Hot with Highs in the lower 90s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 4 Sep District of Columbia

A chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Lows in the lower 70s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Naval Observatory Temperature Statistics

September Temperature

Washington/Reagan National Airport, DC (5 miles)

  • Lowest 1 September, 2026

    77 °F

  • Average September

    86.8 °F

  • Highest 1 September, 2026

    97 °F

Climate (2021–2026)

Washington/Reagan National Airport, DC (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    69.3 °F
Get WillyWeather+ to remove ads