Ketchikan weather live forecast

Today's maximum temperature in Ketchikan is expected to be 17°C. Select a day from the live weather forecast for Ketchikan, Alaska, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Wednesday 17th September 2025 GMT

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

Ketchikan weather forecast by day

Below are the detailed weather forecasts for Ketchikan for the next 5 days.

Ketchikan weather for Wednesday 17th September 2025

Expect mostly cloudy with rain in Ketchikan, Alaska with a maximum temperature of 17°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a fresh breeze of 33 kph from the south.

  • 17°C maximum temperature17
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 90% chance of some rain90
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 17°C wind chill17
    °C wind chill
  • Fresh breeze of 33 kph from the South33
    kph wind from S

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Ketchikan weather for Thursday 18th September 2025

Expect cloudy with some rain in Ketchikan, Alaska with a maximum temperature of 12°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a moderate breeze of 21 kph from the south-east.

  • 12°C maximum temperature12
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 96% chance of some rain96
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 21 kph from the South-East21
    kph wind from SE

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Ketchikan weather for Friday 19th September 2025

Expect cloudy with some rain in Ketchikan, Alaska with a maximum temperature of 13°C and no hours of bright sunshine. There are 50 mm or more of rainfall expected with 99% chance of some rain and a moderate breeze of 26 kph from the south-east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some 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
  • 50 mm or more of rainfall expected>50
    mm or more of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 26 kph from the South-East26
    kph wind from SE

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Ketchikan weather for Saturday 20th September 2025

Expect cloudy with some rain in Ketchikan, Alaska with a maximum temperature of 13°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 50 mm or more of rainfall expected with 100% chance of some rain and a moderate breeze of 25 kph from the south.

  • 13°C maximum temperature13
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 100% chance of some rain100
    % chance of some rain
  • 50 mm or more of rainfall expected>50
    mm or more of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 25 kph from the South25
    kph wind from S

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Ketchikan weather for Sunday 21st September 2025

Expect cloudy with some rain in Ketchikan, Alaska with a maximum temperature of 12°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 27 kph from the south.

  • 12°C maximum temperature12
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 100% chance of some rain100
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the South27
    kph wind from S

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Expires at 23:59 on Wednesday 31st Dec 2025

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

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