Castleton Weather Forecast

    • 66
    • 88

    Rain Showers

    • 64
    • 80

    Mostly Cloudy

    • 67
    • 81

    Chance Rain Showers

    • 65
    • 85

    Chance Rain Showers

    • 63
    • 83

    Partly Sunny

    • 67
    • 86

    Partly Sunny

Today 10 Sep Rappahannock

Partly sunny with a chance of Showers. A chance of Thunderstorms this afternoon. Highs in the mid 80s. West Winds around 5 Mph. Chance of rain 40 percent.

Tonight 10 Sep Rappahannock

A chance of Thunderstorms. Showers. Patchy fog after midnight. Lows in the mid 60s. Light and variable Winds. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castleton Temperature Statistics

September Temperature

Culpeper Regional Airport (14.3 miles)

  • Lowest 8 September, 2026

    56.5 °F

  • Average September

    75.6 °F

  • Highest 1 September, 2026

    95.9 °F

Climate (2021–2026)

Culpeper Regional Airport (14.3 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    69.4 °F
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