Key West weather live forecast

Today's maximum temperature in Key West is expected to be 88°F. Select a day from the live weather forecast for Key West, Florida, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Sunday 14th September 2025 GMT

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

Key West weather forecast by day

Below are the detailed weather forecasts for Key West for the next 5 days.

Key West weather for Sunday 14th September 2025

Expect scattered clouds in Key West, Florida with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the north-east.

  • 88°F maximum temperature88
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 4 mph from the North-East4
    mph wind from NE

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Key West weather for Monday 15th September 2025

Expect scattered clouds in Key West, Florida with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-east.

  • 88°F maximum temperature88
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    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
  • Light breeze of 6 mph from the South-East6
    mph wind from SE

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Key West weather for Tuesday 16th September 2025

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 13 mph from the east.

  • 88°F maximum temperature88
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 64% chance of some rain64
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 13 mph from the East13
    mph wind from E

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Key West weather for Wednesday 17th September 2025

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 20-30 mm of rainfall expected with 82% chance of some rain and a moderate breeze of 16 mph from the east.

  • 86°F maximum temperature86
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 82% chance of some rain82
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 16 mph from the East16
    mph wind from E

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Key West weather for Thursday 18th September 2025

Expect isolated thunderstorms in Key West, Florida with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 50 mm or more of rainfall expected with 91% chance of some rain and a moderate breeze of 14 mph from the east.

  • 86°F maximum temperature86
    °F maximum temperature
  • 81°F minimum temperature81
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 91% chance of some rain91
    % chance of some rain
  • 50 mm or more of rainfall expected>50
    mm or more of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 14 mph from the East14
    mph wind from E

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  • FREE child places available for select holidays
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