Lake Sunapee Weather Forecast

    • 38
    • 53

    Chance Rain Showers

    • 32
    • 47

    Partly Sunny

    • 31
    • 46

    Mostly Sunny

    • 38
    • 52

    Rain Showers Likely

    • 33
    • 47

    Partly Sunny

    • 37
    • 49

    Chance Rain Showers

Today 31 Oct Sullivan

Cloudy with a 20 percent chance of rain. Highs in the lower 50s. Southwest Winds around 15 Mph with Gusts up to 35 Mph.

Tonight 31 Oct Sullivan

Mostly cloudy in the Evening, then becoming partly cloudy. A 50 percent chance of rain Showers. Lows in the mid 30s. West Winds 15 to 20 Mph with Gusts up to 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Sunapee Temperature Statistics

October Temperature

Lebanon Municipal Airport (21.1 miles)

  • Lowest 10 October, 2025

    30 °F

  • Average October

    50.3 °F

  • Highest 5 October, 2025

    86 °F

Climate (2020–Present)

Lebanon Municipal Airport (21.1 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    60 °F
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