Mount Tom State Reservation Weather Forecast

    • 51
    • 78

    Mostly Cloudy

    • 57
    • 74

    Chance Rain Showers

    • 56
    • 80

    Partly Sunny

    • 45
    • 79

    Mostly Sunny

    • 44
    • 70

    Mostly Sunny

    • 49
    • 72

    Partly Sunny

    • 56
    • 77

    Partly Sunny

Today 16 Sep Eastern Hampden

Partly sunny. Near steady temperature in the mid 70s. East Winds 5 to 10 Mph.

Tonight 16 Sep Eastern Hampden

Mostly cloudy. Lows in the lower 50s. East Winds around 5 Mph.

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Mount Tom State Reservation Temperature Statistics

September Temperature

Chicopee Falls / Westover Air Force Base (6.2 miles)

  • Lowest 8 September, 2025

    43.9 °F

  • Average September

    64.1 °F

  • Highest 6 September, 2025

    85.1 °F

Climate (2020–Present)

Chicopee Falls / Westover Air Force Base (6.2 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    61.5 °F
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