Potomac River - Mallows Bay Weather Forecast

    • 71
    • 90

    Rain Showers

    • 65
    • 86

    Rain Showers Likely

    • 62
    • 80

    Mostly Sunny

    • 64
    • 81

    Chance Rain Showers

    • 66
    • 79

    Slight Chance Rain Showers

    • 68
    • 83

    Chance Thunderstorms

Today 21 Jul Charles

Mostly cloudy. Numerous Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy rainfall. Highs around 90. Southwest Winds 15 to 20 Mph. Chance of rain 70 percent.

Tonight 21 Jul Charles

Showers. Numerous Thunderstorms, mainly in the evening. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy rainfall in the evening. Lows in the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac River - Mallows Bay Temperature Statistics

July Temperature

Quantico Marine Corps Airfield - Turner Field (2.5 miles)

  • Lowest 14 July, 2026

    66.9 °F

  • Average July

    82.5 °F

  • Highest 2 July, 2026

    99 °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

    68.5 °F
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