Glastonbury Weather Forecast

    • 53
    • 79

    Decreasing Clouds

    • 53
    • 78

    Partly Sunny

    • 57
    • 73

    Chance Rain Showers

    • 58
    • 79

    Slight Chance Rain Showers

    • 48
    • 80

    Mostly Sunny

    • 45
    • 69

    Mostly Sunny

Today 15 Sep Hartford

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 15 Sep Hartford

Partly cloudy. Lows in the mid 50s. Southeast Winds around 5 Mph, becoming northeast after midnight.

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Glastonbury Temperature Statistics

September Temperature

Hartford, Hartford-Brainard Airport (6.2 miles)

  • Lowest 8 September, 2025

    46.9 °F

  • Average September

    65.2 °F

  • Highest 6 September, 2025

    84 °F

Climate (2020–Present)

Hartford, Hartford-Brainard Airport (6.2 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    63.6 °F
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