Hilo, Big Island weather live forecast

Today's maximum temperature in Hilo, Big Island is expected to be 82°F. Select a day from the live weather forecast for Hilo, Big Island, Hawaii, USA for more weather parameters.

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

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

Hilo, Big Island weather forecast by day

Below are the detailed weather forecasts for Hilo, Big Island for the next 5 days.

Hilo, Big Island weather for Thursday 18th September 2025

Expect broken clouds in Hilo, Big Island, Hawaii with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 5 mph from the East5
    mph wind from E

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Hilo, Big Island weather for Friday 19th September 2025

Expect isolated thunderstorms in Hilo, Big Island, Hawaii with a maximum temperature of 84°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a light breeze of 7 mph from the north-east.

  • 84°F maximum temperature84
    °F maximum temperature
  • 73°F minimum temperature73
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 38% chance of some rain38
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 7 mph from the North-East7
    mph wind from NE

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Hilo, Big Island weather for Saturday 20th September 2025

Expect isolated thunderstorms in Hilo, Big Island, Hawaii with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a light breeze of 5 mph from the north-east.

  • 81°F maximum temperature81
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 51% chance of some rain51
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 5 mph from the North-East5
    mph wind from NE

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Hilo, Big Island weather for Sunday 21st September 2025

Expect broken clouds in Hilo, Big Island, Hawaii with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 5 mph from the East5
    mph wind from E

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Hilo, Big Island weather for Monday 22nd September 2025

Expect mostly cloudy with light rain in Hilo, Big Island, Hawaii with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 11 (Extreme) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a light breeze of 5 mph from the north-east.

  • 82°F maximum temperature82
    °F maximum temperature
  • 70°F minimum temperature70
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 54% chance of some rain54
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 5 mph from the North-East5
    mph wind from NE

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