Cromwell Weather Forecast

    • 51
    • 70

    Decreasing Clouds

    • 55
    • 80

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

    • 55
    • 75

    Chance Rain Showers

    • 54
    • 72

    Chance Rain Showers

    • 54
    • 75

    Partly Sunny

Today 10 Sep Northern Middlesex

Mostly cloudy. Near steady temperature in the upper 60s. Northeast Winds around 10 Mph.

Tonight 10 Sep Northern Middlesex

Partly cloudy. Lows in the lower 50s. North Winds around 5 Mph.

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Cromwell Temperature Statistics

September Temperature

Hartford, Hartford-Brainard Airport (8.1 miles)

  • Lowest 8 September, 2025

    46.9 °F

  • Average September

    66 °F

  • Highest 6 September, 2025

    84 °F

Climate (2020–Present)

Hartford, Hartford-Brainard Airport (8.1 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    54.4 °F

  • Average High 2020–2025

    63.6 °F
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