Potomac River - Mallows Bay Weather Forecast

    • 70
    • 89

    Chance Rain Showers

    • 65
    • 86

    Partly Sunny

    • 66
    • 82

    Mostly Cloudy

    • 67
    • 86

    Rain Showers Likely

    • 66
    • 80

    Chance Rain Showers

    • 64
    • 76

    Chance Rain Showers

Today 17 Sep Charles

Mostly sunny. A slight chance of Showers in the afternoon. Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 17 Sep Charles

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows around 70. South Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Mallows Bay Temperature Statistics

September Temperature

Quantico Marine Corps Airfield - Turner Field (2.5 miles)

  • Lowest 8 September, 2026

    61 °F

  • Average September

    78 °F

  • Highest 1 September, 2026

    98.1 °F

Climate (2021–2026)

Quantico Marine Corps Airfield - Turner Field (2.5 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    59.7 °F

  • Average High 2021–2026

    68.6 °F
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