Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 9°C. Select a day from the live weather forecast for Hamilton, Ontario, Canada for more weather parameters.

5-day weather forecast updated at 04:02 on Friday 19th 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 Friday 19th December 2025

Expect mostly cloudy with rain in Hamilton, Ontario with a maximum temperature of 9°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 36% chance of some rain and a gentle breeze of 19 kph from the west.

  • 9°C maximum temperature9
    °C maximum temperature
  • -4°C minimum temperature-4
    °C 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)
  • 36% chance of some rain36
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 6°C wind chill6
    °C wind chill
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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Hamilton weather for Saturday 20th December 2025

Expect mostly cloudy with light snow in Hamilton, Ontario with a maximum temperature of 3°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 cm of snow expected with 37% chance of some snow and a gentle breeze of 14 kph from the south-west.

  • 3°C maximum temperature3
    °C maximum temperature
  • -4°C minimum temperature-4
    °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)
  • 37% chance of some snow37
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -1°C wind chill-1
    °C wind chill
  • Gentle breeze of 14 kph from the South-West14
    kph 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 0°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 15 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 2 hours of bright sunshine2
    hours 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 15 kph from the West15
    kph wind from W

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Hamilton weather for Monday 22nd December 2025

Expect mostly cloudy with light snow in Hamilton, Ontario with a maximum temperature of 0°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 18% chance of some snow and a light breeze of 9 kph from the south-west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -7°C minimum temperature-7
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 18% chance of some snow18
    % chance of some snow
  • 0-2 cm of snow expected<2
    cm of snow expected
  • -4°C wind chill-4
    °C wind chill
  • Light breeze of 9 kph from the South-West9
    kph wind from SW

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Hamilton weather for Tuesday 23rd December 2025

Expect overcast skies in Hamilton, Ontario with a maximum temperature of 4°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

  • 4°C maximum temperature4
    °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
  • 2°C wind chill2
    °C wind chill
  • Light breeze of 10 kph from the West10
    kph wind from W

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

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