Montclair Weather Forecast

    • 61
    • 85

    Becoming Sunny

    • 60
    • 86

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 68
    • 88

    Slight Chance Rain Showers

    • 68
    • 87

    Chance Thunderstorms

    • 69
    • 88

    Chance Rain Showers

Today 23 Aug Central and Southeast Prince William/Manassas/Manassas Park

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 80s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 23 Aug Central and Southeast Prince William/Manassas/Manassas Park

Mostly clear. Lows around 60. West Winds 5 to 10 Mph.

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Montclair Temperature Statistics

August Temperature

Quantico Marine Corps Airfield - Turner Field (7.5 miles)

  • Lowest 21 August, 2026

    66 °F

  • Average August

    80.6 °F

  • Highest 17 August, 2026

    95 °F

Climate (2021–2026)

Quantico Marine Corps Airfield - Turner Field (7.5 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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