Mount Sunapee Weather Forecast

    • 19
    • 24

    Increasing Clouds

    • 24
    • 30

    Snow

    • 15
    • 31

    Mostly Cloudy

    • 20
    • 32

    Mostly Cloudy

    • 17
    • 30

    Snow Likely

    • 17
    • 28

    Chance Snow

Today 22 Dec Merrimack

Mostly sunny. Highs in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as zero this morning.

Tonight 22 Dec Merrimack

Partly cloudy. Lows around 17. Light and variable Winds.

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Mount Sunapee Temperature Statistics

December Temperature

Springfield, Hartness State Springfield Airport (22.4 miles)

  • Lowest 9 December, 2025

    -8 °F

  • Average December

    24.2 °F

  • Highest 19 December, 2025

    55 °F

Climate (2020–Present)

Springfield, Hartness State Springfield Airport (22.4 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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