Tidal Basin Weather Forecast

    • 73
    • 93

    Chance Rain Showers

    • 67
    • 84

    Chance Rain Showers

    • 63
    • 83

    Partly Sunny

    • 63
    • 84

    Mostly Sunny

    • 66
    • 86

    Partly Sunny

    • 73
    • 90

    Partly Sunny

    • 68
    • 92

    Slight Chance Thunderstorms

Today 4 Sep District of Columbia

Mostly cloudy with a slight chance of Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Hot with Highs in the lower 90s. Northwest Winds around 10 Mph. Chance of rain 20 percent.

Tonight 4 Sep District of Columbia

A slight chance of Thunderstorms this evening. Mostly cloudy with a slight chance of Showers. Lows in the lower 70s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tidal Basin Temperature Statistics

September Temperature

Washington/Reagan National Airport, DC (2.5 miles)

  • Lowest 2 September, 2026

    75 °F

  • Average September

    83.9 °F

  • Highest 1 September, 2026

    98.7 °F

Climate (2021–2026)

Washington/Reagan National Airport, DC (2.5 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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