Bristow Weather Forecast

    • 67
    • 87

    Rain Showers

    • 52
    • 82

    Becoming Sunny

    • 55
    • 82

    Mostly Sunny

    • 60
    • 86

    Mostly Sunny

    • 64
    • 88

    Partly Sunny

    • 63
    • 85

    Slight Chance Thunderstorms

    • 64
    • 83

    Chance Rain Showers

Today 13 Sep Southern Fauquier

Partly sunny with scattered Showers. Highs in the mid 80s. Northwest Winds around 5 Mph. Chance of rain 30 percent.

Tonight 13 Sep Southern Fauquier

Partly cloudy. Isolated Showers this evening. Lows in the upper 60s. West Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bristow Temperature Statistics

September Temperature

Manassas, Manassas Regional Airport/Harry P. Davis Field (0.6 miles)

  • Lowest 8 September, 2026

    55 °F

  • Average September

    75.9 °F

  • Highest 1 September, 2026

    96.1 °F

Climate (2021–2026)

Manassas, Manassas Regional Airport/Harry P. Davis Field (0.6 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.1 °F

  • Average High 2021–2026

    68.1 °F
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