Friday Harbor weather live forecast

Today's maximum temperature in Friday Harbor is expected to be 43°F. Select a day from the live weather forecast for Friday Harbor, Washington State, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Friday 19th 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 Friday 19th December 2025

Expect mostly cloudy with light rain in Friday Harbor, Washington State with a maximum temperature of 43°F and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 12 mph from the south-west.

  • 43°F maximum temperature43
    °F maximum temperature
  • 41°F minimum temperature41
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 76% chance of some rain76
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 37°F wind chill37
    °F wind chill
  • Gentle breeze of 12 mph from the South-West12
    mph wind from SW

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Friday Harbor weather for Saturday 20th December 2025

Expect mostly cloudy with rain in Friday Harbor, Washington State with a maximum temperature of 46°F and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 9 mph from the south.

  • 46°F maximum temperature46
    °F maximum temperature
  • 41°F minimum temperature41
    °F 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)
  • 63% chance of some rain63
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 41°F wind chill41
    °F wind chill
  • Gentle breeze of 9 mph from the South9
    mph wind from S

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Friday Harbor weather for Sunday 21st December 2025

Expect mostly cloudy with light rain in Friday Harbor, Washington State with a maximum temperature of 46°F and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 73% chance of some rain and a gentle breeze of 10 mph from the south.

  • 46°F maximum temperature46
    °F maximum temperature
  • 43°F minimum temperature43
    °F 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)
  • 73% chance of some rain73
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 41°F wind chill41
    °F wind chill
  • Gentle breeze of 10 mph from the South10
    mph 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 48°F and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a moderate breeze of 14 mph from the south.

  • 48°F maximum temperature48
    °F maximum temperature
  • 43°F minimum temperature43
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 88% chance of some rain88
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 43°F wind chill43
    °F wind chill
  • Moderate breeze of 14 mph from the South14
    mph wind from S

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Friday Harbor weather for Tuesday 23rd December 2025

Expect sunshine and showers in Friday Harbor, Washington State with a maximum temperature of 46°F, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 56% chance of some rain and a gentle breeze of 9 mph from the south-east.

  • 46°F maximum temperature46
    °F maximum temperature
  • 43°F minimum temperature43
    °F minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 56% chance of some rain56
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 41°F wind chill41
    °F wind chill
  • Gentle breeze of 9 mph from the South-East9
    mph wind from SE

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Metric (°C)  |  Imperial (°F)

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