Cromwell Weather Forecast

    • 54
    • 90

    Chance Rain Showers

    • 47
    • 67

    Chance Rain Showers

    • 47
    • 69

    Chance Rain Showers

    • 47
    • 60

    Rain Showers Likely

    • 52
    • 64

    Chance Rain Showers

    • 56
    • 74

    Slight Chance Rain Showers

    • 58
    • 79

    Mostly Cloudy

Today 20 May Northern Middlesex

Showers likely with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Highs around 90. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 20 May Northern Middlesex

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms late this Evening, then a slight chance of Showers after midnight. Lows in the mid 50s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cromwell Temperature Statistics

May Temperature

Hartford, Hartford-Brainard Airport (8.1 miles)

  • Lowest 3 May, 2026

    41 °F

  • Average May

    58.1 °F

  • Highest 17 May, 2026

    90 °F

Climate (2021–Present)

Hartford, Hartford-Brainard Airport (8.1 miles)

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  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    63.2 °F
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