Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 45°F. Select a day from the live weather forecast for Hamilton, Ontario, Canada for more weather parameters.

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

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

Hamilton weather forecast by day

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

Hamilton weather for Thursday 18th December 2025

Expect mostly cloudy with rain in Hamilton, Ontario with a maximum temperature of 45°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 9 mph from the south.

  • 45°F maximum temperature45
    °F maximum temperature
  • 34°F minimum temperature34
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 79% chance of some rain79
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 39°F wind chill39
    °F wind chill
  • Gentle breeze of 9 mph from the South9
    mph wind from S

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Hamilton weather for Friday 19th December 2025

Expect mostly cloudy with rain in Hamilton, Ontario with a maximum temperature of 43°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 35% chance of some rain and a gentle breeze of 11 mph from the west.

  • 43°F maximum temperature43
    °F maximum temperature
  • 25°F minimum temperature25
    °F minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 35% chance of some rain35
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 36°F wind chill36
    °F wind chill
  • Gentle breeze of 11 mph from the West11
    mph wind from W

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Hamilton weather for Saturday 20th December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 36°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the south-west.

  • 36°F maximum temperature36
    °F maximum temperature
  • 23°F minimum temperature23
    °F minimum temperature
  • Broken clouds
    broken clouds
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 30°F wind chill30
    °F wind chill
  • Gentle breeze of 9 mph from the South-West9
    mph wind from SW

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Hamilton weather for Sunday 21st December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 32°F and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 11 mph from the west.

  • 32°F maximum temperature32
    °F maximum temperature
  • 19°F minimum temperature19
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours of sunshine
  • No UV (maximum) index0
    UV index (None)
  • 0 cm of snow expected0
    cm of snow expected
  • 23°F wind chill23
    °F wind chill
  • Gentle breeze of 11 mph from the West11
    mph wind from W

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Hamilton weather for Monday 22nd December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 28°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 4 mph from the west.

  • 28°F maximum temperature28
    °F maximum temperature
  • 18°F minimum temperature18
    °F minimum temperature
  • Broken clouds
    broken clouds
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • 25°F wind chill25
    °F wind chill
  • Light breeze of 4 mph from the West4
    mph wind from W

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