Friday Harbor weather live forecast

Today's maximum temperature in Friday Harbor is expected to be 9°C. Select a day from the live weather forecast for Friday Harbor, Washington State, USA for more weather parameters.

  • Thursday
    18th Dec
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Friday
    19th Dec
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Saturday
    20th Dec
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Sunday
    21st Dec
    Mostly cloudy with rain (10-20 mm of rainfall expected)
  • Monday
    22nd Dec
    Mostly cloudy with rain (5-10 mm of rainfall expected)

5-day weather forecast updated at 04:01 on Thursday 18th December 2025 GMT

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The 5-day weather forecast for Washington State (Friday Harbor) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Friday Harbor weather forecast by day

Below are the detailed weather forecasts for Friday Harbor for the next 5 days.

Friday Harbor weather for Thursday 18th December 2025

Expect mostly cloudy with rain in Friday Harbor, Washington State with a maximum temperature of 9°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 99% chance of some rain and a fresh breeze of 30 kph from the south-east.

  • 9°C maximum temperature9
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 99% chance of some rain99
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Fresh breeze of 30 kph from the South-East30
    kph wind from SE

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Friday Harbor weather for Friday 19th December 2025

Expect mostly cloudy with rain in Friday Harbor, Washington State with a maximum temperature of 6°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a gentle breeze of 18 kph from the south-west.

  • 6°C maximum temperature6
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 98% chance of some rain98
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 3°C wind chill3
    °C wind chill
  • Gentle breeze of 18 kph from the South-West18
    kph wind from SW

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Friday Harbor weather for Saturday 20th December 2025

Expect mostly cloudy with light rain in Friday Harbor, Washington State with a maximum temperature of 8°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 97% chance of some rain and a gentle breeze of 15 kph from the south.

  • 8°C maximum temperature8
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 97% chance of some rain97
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 5°C wind chill5
    °C wind chill
  • Gentle breeze of 15 kph from the South15
    kph wind from S

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Friday Harbor weather for Sunday 21st December 2025

Expect mostly cloudy with rain in Friday Harbor, Washington State with a maximum temperature of 8°C and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a gentle breeze of 19 kph from the south.

  • 8°C maximum temperature8
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 90% chance of some rain90
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 6°C wind chill6
    °C wind chill
  • Gentle breeze of 19 kph from the South19
    kph wind from S

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Friday Harbor weather for Monday 22nd December 2025

Expect mostly cloudy with rain in Friday Harbor, Washington State with a maximum temperature of 7°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 95% chance of some rain and a moderate breeze of 21 kph from the south.

  • 7°C maximum temperature7
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 95% chance of some rain95
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 4°C wind chill4
    °C wind chill
  • Moderate breeze of 21 kph from the South21
    kph wind from S

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Metric (°C / mm)  |  Imperial (°F / inches)

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