Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 7°C. Select a day from the live weather forecast for Hamilton, Ontario, Canada for more weather parameters.

  • Thursday
    18th Dec
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Friday
    19th Dec
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Saturday
    20th Dec
    Broken clouds
  • Sunday
    21st Dec
    Broken clouds
  • Monday
    22nd Dec
    Broken clouds

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

More about Hamilton

Hamilton by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ontario

Hurtigruten: Latest offers on worldwide cruises

  • Explore latest special offers on Hurtigruten Expeditions
  • Includes online discount, no single supplement & more
  • Browse top online deals & destination specific offers
Go to Hurtigruten deal >>

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 7°C, 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 14 kph from the south.

  • 7°C maximum temperature7
    °C maximum temperature
  • 1°C minimum temperature1
    °C 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
  • 4°C wind chill4
    °C wind chill
  • Gentle breeze of 14 kph from the South14
    kph wind from S

Back to top

Hamilton weather for Friday 19th December 2025

Expect mostly cloudy with rain in Hamilton, Ontario with a maximum temperature of 6°C, 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 18 kph from the west.

  • 6°C maximum temperature6
    °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)
  • 35% chance of some rain35
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 2°C wind chill2
    °C wind chill
  • Gentle breeze of 18 kph from the West18
    kph wind from W

Back to top

Hamilton weather for Saturday 20th December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 2°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -5°C minimum temperature-5
    °C 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
  • -1°C wind chill-1
    °C wind chill
  • Gentle breeze of 14 kph from the South-West14
    kph wind from SW

Back to top

Hamilton weather for Sunday 21st December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 0°C and 2 hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 17 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -7°C minimum temperature-7
    °C 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
  • -5°C wind chill-5
    °C wind chill
  • Gentle breeze of 17 kph from the West17
    kph wind from W

Back to top

Hamilton weather for Monday 22nd December 2025

Expect broken clouds in Hamilton, Ontario with a maximum temperature of -2°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 7 kph from the west.

  • -2°C maximum temperature-2
    °C maximum temperature
  • -8°C minimum temperature-8
    °C 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
  • -4°C wind chill-4
    °C wind chill
  • Light breeze of 7 kph from the West7
    kph wind from W

Back to top

British Airways: The Original Sale is now on

  • Save on holidays & flights worldwide in the BA sale
  • Book trips to Europe, USA, Caribbean & beyond
  • Including New York, Los Angeles, Florida, Barbados & Dubai
Go to British Airways deal >>

Expires at 23:59 on Tuesday 27th Jan 2026 · View all British Airways offers

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

Back to top

More about Ontario

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^