Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be -5°C. 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 Monday 15th 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 Monday 15th December 2025

Expect mostly cloudy with light snow in Hamilton, Ontario with a maximum temperature of -5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 cm of snow expected with 69% chance of some snow and a light breeze of 12 kph from the south-west.

  • -5°C maximum temperature-5
    °C maximum temperature
  • -11°C minimum temperature-11
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 69% chance of some snow69
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -10°C wind chill-10
    °C wind chill
  • Light breeze of 12 kph from the South-West12
    kph wind from SW

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Hamilton weather for Tuesday 16th December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 0°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 16 kph from the south-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -4°C wind chill-4
    °C wind chill
  • Gentle breeze of 16 kph from the South-West16
    kph wind from SW

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Hamilton weather for Wednesday 17th December 2025

Expect overcast skies in Hamilton, Ontario with a maximum temperature of 3°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

  • 3°C maximum temperature3
    °C maximum temperature
  • -2°C minimum temperature-2
    °C minimum temperature
  • Overcast skies
    overcast skies
  • 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
  • -1°C wind chill-1
    °C wind chill
  • Gentle breeze of 17 kph from the South-West17
    kph wind from SW

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Hamilton weather for Thursday 18th December 2025

Expect mostly cloudy with light rain in Hamilton, Ontario with a maximum temperature of 7°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 15 kph from the south.

  • 7°C maximum temperature7
    °C maximum temperature
  • -1°C minimum temperature-1
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 85% chance of some rain85
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 4°C wind chill4
    °C wind chill
  • Gentle breeze of 15 kph from the South15
    kph wind from S

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Hamilton weather for Friday 19th December 2025

Expect overcast skies in Hamilton, Ontario with a maximum temperature of 1°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -9°C minimum temperature-9
    °C minimum temperature
  • Overcast skies
    overcast skies
  • 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
  • -4°C wind chill-4
    °C wind chill
  • Gentle breeze of 16 kph from the West16
    kph wind from W

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

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