Portsmouth Colony Weather Forecast

    • 46
    • 57

    Gradual Clearing

    • 50
    • 65

    Mostly Sunny

    • 60
    • 74

    Mostly Sunny

    • 65
    • 84

    Mostly Sunny

    • 66
    • 85

    Chance Thunderstorms

    • 62
    • 79

    Chance Rain Showers

    • 59
    • 74

    Chance Rain Showers

Today 31 May Lake

Mostly cloudy. Cooler with Highs in the upper 50s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 31 May Lake

Mostly clear. Lows in the upper 40s. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Colony Temperature Statistics

May Temperature

Willoughby (13.7 miles)

  • Lowest 10 May, 2025

    38.1 °F

  • Average May

    56.9 °F

  • Highest 1 May, 2025

    80.8 °F

Climate (2020–Present)

Willoughby (13.7 miles)

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  • Average Low 2020–2025

    43.8 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    59.3 °F
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