Mason Neck Weather Forecast

    • 65
    • 74

    Rain Showers

    • 67
    • 74

    Chance Rain Showers

    • 72
    • 81

    Chance Thunderstorms

    • 75
    • 91

    Chance Thunderstorms

    • 70
    • 93

    Chance Thunderstorms

    • 68
    • 88

    Mostly Sunny

Today 15 Jun Fairfax

Cloudy. A slight chance of Showers this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 70s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 15 Jun Fairfax

Cloudy. Showers with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mason Neck Temperature Statistics

June Temperature

Fort Belvoir (3.7 miles)

  • Lowest 1 June, 2025

    42.4 °F

  • Average June

    71.5 °F

  • Highest 12 June, 2025

    91.2 °F

Climate (2020–Present)

Fort Belvoir (3.7 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    68.4 °F
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