Sunapee State Park Weather Forecast

    • 26
    • 37

    Mostly Cloudy

    • 34
    • 42

    Rain Likely

    • 31
    • 43

    Mostly Cloudy

    • 27
    • 44

    Chance Rain/Snow

    • 18
    • 36

    Chance Snow

    • 21
    • 35

    Mostly Cloudy

Today 19 Mar Merrimack

Partly sunny. Highs in the lower 40s. Light and variable Winds, becoming south around 10 Mph this afternoon.

Tonight 19 Mar Merrimack

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 20s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunapee State Park Temperature Statistics

March Temperature

Springfield, Hartness State Springfield Airport (23 miles)

  • Lowest 2 March, 2026

    -0.3 °F

  • Average March

    33.7 °F

  • Highest 10 March, 2026

    70 °F

Climate (2021–Present)

Springfield, Hartness State Springfield Airport (23 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.9 °F
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