Portsmouth Colony Weather Forecast

    • 27
    • 35

    Partly Sunny

    • 30
    • 39

    Partly Sunny

    • 43
    • 55

    Mostly Cloudy

    • 47
    • 58

    Rain Likely

    • 52
    • 66

    Rain Likely

    • 46
    • 68

    Chance Rain

Today 27 Mar Lake

Mostly sunny. Much cooler with Highs in the mid 30s. North Winds 5 to 10 Mph.

Tonight 27 Mar Lake

Partly cloudy. Lows in the upper 20s. Northwest Winds around 5 Mph.

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Portsmouth Colony Temperature Statistics

March Temperature

Willoughby (13.7 miles)

  • Lowest 2 March, 2026

    14.7 °F

  • Average March

    42.3 °F

  • Highest 15 March, 2026

    74.7 °F

Climate (2021–Present)

Willoughby (13.7 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    59.3 °F
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