Glastonbury Weather Forecast

    • 63
    • 75

    Rain Showers

    • 45
    • 74

    Mostly Sunny

    • 55
    • 71

    Mostly Sunny

    • 61
    • 77

    Partly Sunny

    • 58
    • 79

    Chance Rain Showers

    • 56
    • 78

    Chance Rain Showers

Today 13 Sep Hartford

Showers with a chance of Thunderstorms this Morning, then Showers with isolated Thunderstorms this afternoon. Patchy fog. Some Thunderstorms may produce frequent lightning and heavy rainfall. Locally heavy rainfall possible this morning. Highs in the mid 70s. Southeast Winds around 5 Mph, becoming north this afternoon. Chance of rain near 100 percent.

Tonight 13 Sep Hartford

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers after midnight. Humid with Lows in the lower 60s. West Winds 5 to 10 Mph. Chance of rain 40 percent.

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Glastonbury Temperature Statistics

September Temperature

Hartford, Hartford-Brainard Airport (6.2 miles)

  • Lowest 7 September, 2026

    51.1 °F

  • Average September

    70.1 °F

  • Highest 10 September, 2026

    86 °F

Climate (2021–2026)

Hartford, Hartford-Brainard Airport (6.2 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    63.2 °F
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