Reston Weather Forecast

    • 63
    • 83

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

    • 65
    • 87

    Mostly Sunny

    • 68
    • 90

    Mostly Sunny

    • 72
    • 92

    Slight Chance Thunderstorms

    • 74
    • 94

    Chance Rain Showers

Today 8 Aug Eastern Loudoun

Mostly sunny. Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 8 Aug Eastern Loudoun

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph in the Evening, becoming light and variable.

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Reston Temperature Statistics

August Temperature

Washington/Dulles International Airport, DC (5 miles)

  • Lowest 4 August, 2025

    57.9 °F

  • Average August

    71.7 °F

  • Highest 4 August, 2025

    84.9 °F

Climate (2020–Present)

Washington/Dulles International Airport, DC (5 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    58.3 °F

  • Average High 2020–2025

    68.5 °F
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