Lorton Weather Forecast

    • 68
    • 83

    Chance Rain Showers

    • 67
    • 87

    Chance Thunderstorms

    • 55
    • 85

    Rain Showers

    • 54
    • 71

    Chance Rain Showers

    • 54
    • 70

    Chance Thunderstorms

    • 57
    • 73

    Chance Rain Showers

Today 1 May Fairfax

Partly sunny. A slight chance of Showers in the afternoon. Highs in the lower 80s. East Winds 5 to 10 Mph, becoming southeast with Gusts up to 20 Mph in the afternoon. Chance of rain 20 percent.

Tonight 1 May Fairfax

Partly cloudy. Lows around 60. East Winds around 5 Mph.

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Lorton Temperature Statistics

May Temperature

Fort Belvoir (2.5 miles)

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Climate (2020–Present)

Fort Belvoir (2.5 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.3 °F
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