Lake Sunapee Weather Forecast

    • 27
    • 45

    Rain

    • 26
    • 41

    Slight Chance Snow

    • 25
    • 40

    Rain/Snow Likely

    • 17
    • 34

    Chance Snow

    • 19
    • 36

    Mostly Cloudy

    • 16
    • 38

    Chance Rain/Snow

Today 20 Mar Sullivan

Partly sunny this Morning, then rain this afternoon. Highs in the mid 40s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph this afternoon. Chance of rain near 100 percent.

Tonight 20 Mar Sullivan

Cloudy. Rain, mainly this evening. Lows in the lower 30s. Southwest Winds around 10 Mph, becoming west after midnight. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Sunapee Temperature Statistics

March Temperature

Lebanon Municipal Airport (21.1 miles)

  • Lowest 2 March, 2026

    -6 °F

  • Average March

    34.5 °F

  • Highest 10 March, 2026

    73 °F

Climate (2021–Present)

Lebanon Municipal Airport (21.1 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    59.8 °F
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