Sunapee State Park Weather Forecast

    • 54
    • 71

    Increasing Clouds

    • 53
    • 68

    Chance Rain Showers

    • 53
    • 71

    Chance Rain Showers

    • 55
    • 70

    Rain Showers Likely

    • 56
    • 72

    Slight Chance Rain Showers

    • 56
    • 75

    Partly Sunny

Today 19 Jun Merrimack

Partly sunny. Highs in the mid 70s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 19 Jun Merrimack

Mostly clear. Lows in the mid 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Sunapee State Park Temperature Statistics

June Temperature

Springfield, Hartness State Springfield Airport (23 miles)

  • Lowest 2 June, 2026

    39.7 °F

  • Average June

    68.2 °F

  • Highest 12 June, 2026

    92.6 °F

Climate (2021–2026)

Springfield, Hartness State Springfield Airport (23 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    59 °F
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