Castleton Weather Forecast

    • 45
    • 56

    Rain Likely

    • 41
    • 60

    Mostly Cloudy

    • 40
    • 64

    Partly Sunny

    • 40
    • 67

    Partly Sunny

    • 42
    • 67

    Mostly Cloudy

    • 44
    • 67

    Slight Chance Rain Showers

    • 46
    • 67

    Mostly Cloudy

Today 20 Sep Western Rutland

Rain. Highs in the mid 50s. Light and variable Winds. Chance of rain near 100 percent.

Tonight 20 Sep Western Rutland

Cloudy with rain likely until Midnight, then partly cloudy after midnight. Patchy dense fog after midnight. Lows in the mid 40s. Light and variable Winds. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castleton Temperature Statistics

September Temperature

Rutland-Southern Vermont Regional Airport (13.7 miles)

  • Lowest 15 September, 2026

    43 °F

  • Average September

    63.2 °F

  • Highest 3 September, 2026

    79 °F

Climate (2021–2026)

Rutland-Southern Vermont Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    38.9 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    57 °F
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