Lake Sunapee weather live forecast

Today's maximum temperature in Lake Sunapee is expected to be 88°F. Select a day from the live weather forecast for Lake Sunapee, New Hampshire, USA for more weather parameters.

5-day weather forecast updated at 04:03 on Saturday 16th August 2025 GMT

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The 5-day weather forecast for New Hampshire (Lake Sunapee) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lake Sunapee weather forecast by day

Below are the detailed weather forecasts for Lake Sunapee for the next 5 days.

Lake Sunapee weather for Saturday 16th August 2025

Expect scattered clouds in Lake Sunapee, New Hampshire with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the south-west.

  • 88°F maximum temperature88
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Little or no wind of 4 mph from the South-West4
    mph wind from SW

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Lake Sunapee weather for Sunday 17th August 2025

Expect isolated thunderstorms in Lake Sunapee, New Hampshire with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a light breeze of 7 mph from the north-west.

  • 84°F maximum temperature84
    °F maximum temperature
  • 59°F minimum temperature59
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 36% chance of some rain36
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 7 mph from the North-West7
    mph wind from NW

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Lake Sunapee weather for Monday 18th August 2025

Expect scattered clouds in Lake Sunapee, New Hampshire with a maximum temperature of 75°F, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the north.

  • 75°F maximum temperature75
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 75°F wind chill75
    °F wind chill
  • Light breeze of 6 mph from the North6
    mph wind from N

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Lake Sunapee weather for Tuesday 19th August 2025

Expect overcast skies in Lake Sunapee, New Hampshire with a maximum temperature of 70°F, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 4 mph from the south-east.

  • 70°F maximum temperature70
    °F maximum temperature
  • 52°F minimum temperature52
    °F minimum temperature
  • Overcast skies
    overcast skies
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Little or no wind of 4 mph from the South-East4
    mph wind from SE

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Lake Sunapee weather for Wednesday 20th August 2025

Expect overcast with light rain in Lake Sunapee, New Hampshire with a maximum temperature of 70°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 59% chance of some rain and a light breeze of 4 mph from the south-east.

  • 70°F maximum temperature70
    °F maximum temperature
  • 54°F minimum temperature54
    °F minimum temperature
  • Overcast with light rain
    overcast with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 59% chance of some rain59
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 70°F wind chill70
    °F wind chill
  • Light breeze of 4 mph from the South-East4
    mph wind from SE

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