Mount Sunapee Resort Weather Forecast

    • 53
    • 74

    Chance Thunderstorms

    • 48
    • 70

    Mostly Sunny

    • 48
    • 68

    Mostly Sunny

    • 51
    • 72

    Partly Sunny

    • 47
    • 69

    Slight Chance Rain Showers

    • 48
    • 70

    Partly Sunny

Today 25 Aug Merrimack

Partly sunny with scattered Showers and Thunderstorms. Highs in the upper 70s. Light and variable Winds. Chance of rain 50 percent.

Tonight 25 Aug Merrimack

Mostly clear. Isolated Showers this evening. Lows in the mid 50s. Light and variable Winds. Chance of rain 20 percent.

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Mount Sunapee Resort Temperature Statistics

August Temperature

Springfield, Hartness State Springfield Airport (21.7 miles)

  • Lowest 22 August, 2025

    45.6 °F

  • Average August

    70.6 °F

  • Highest 11 August, 2025

    95.6 °F

Climate (2020–Present)

Springfield, Hartness State Springfield Airport (21.7 miles)

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  • Average Low 2020–2025

    38.4 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    58.9 °F
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