Manassas Regional Airport (Harry P. Davis Field) Weather Forecast

    • 64
    • 85

    Chance Thunderstorms

    • 59
    • 74

    Chance Rain Showers

    • 54
    • 66

    Rain Showers Likely

    • 53
    • 64

    Chance Rain Showers

    • 50
    • 64

    Chance Rain Showers

    • 50
    • 67

    Slight Chance Rain Showers

Today 20 Sep Southern Fauquier

Mostly cloudy. Isolated Showers late this Morning, then scattered Showers with a chance of Thunderstorms this afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 20 Sep Southern Fauquier

Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Patchy fog after midnight. Lows in the lower 60s. North Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Manassas Regional Airport (Harry P. Davis Field) Temperature Statistics

September Temperature

Manassas, Manassas Regional Airport/Harry P. Davis Field (0 miles)

  • Lowest 15 September, 2026

    50 °F

  • Average September

    74.6 °F

  • Highest 1 September, 2026

    96.1 °F

Climate (2021–2026)

Manassas, Manassas Regional Airport/Harry P. Davis Field (0 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.1 °F

  • Average High 2021–2026

    68.1 °F
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