Oak Grove Weather Forecast

    • 65
    • 87

    Decreasing Clouds

    • 70
    • 88

    Mostly Sunny

    • 66
    • 89

    Rain Showers Likely

    • 63
    • 82

    Partly Sunny

    • 67
    • 82

    Chance Rain Showers

    • 67
    • 85

    Partly Sunny

Today 8 Sep Eastern Loudoun

Mostly sunny. Highs in the upper 80s. Southwest Winds around 5 Mph.

Tonight 8 Sep Eastern Loudoun

Partly cloudy. Lows in the mid 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oak Grove Temperature Statistics

September Temperature

Washington/Dulles International Airport, DC (3.7 miles)

  • Lowest 6 September, 2026

    61 °F

  • Average September

    79.6 °F

  • Highest 1 September, 2026

    94.6 °F

Climate (2021–2026)

Washington/Dulles International Airport, DC (3.7 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    68.6 °F
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