Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 25°C. Select a day from the live weather forecast for Hamilton, Ontario, Canada for more weather parameters.

• Monday
  17th Aug
  25
  20
  
  6
  6
• Tuesday
  18th Aug
  25
  18
  
  8
  6
• Wednesday
  19th Aug
  25
  20
  
  5
  3
• Thursday
  20th Aug
  25
  18
  
  11
  6
• Friday
  21st Aug
  25
  16
  
  11
  7

5-day weather forecast updated at 04:01 on Monday 17th August 2026 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 17th August 2026

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 25°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-west.

• 25
  °C maximum temperature
• 20
  °C minimum temperature
• 
  broken clouds
• 6
  hours of sunshine
• 6
  UV index (High)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 5
  kph wind from NW

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Hamilton weather for Tuesday 18th August 2026

Expect scattered clouds in Hamilton, Ontario with a maximum temperature of 25°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the west.

• 25
  °C maximum temperature
• 18
  °C minimum temperature
• 
  scattered clouds
• 8
  hours of sunshine
• 6
  UV index (High)
• 0
  mm of rainfall expected
• 0
  no heat & humidity
• 6
  kph wind from W

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Hamilton weather for Wednesday 19th August 2026

Expect isolated thunderstorms in Hamilton, Ontario with a maximum temperature of 25°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 44% chance of some rain and little or no wind of 6 kph from the north-west.

• 25
  °C maximum temperature
• 20
  °C minimum temperature
• 
  isolated thunderstorms
• 5
  hours of sunshine
• 3
  UV index (Moderate)
• 44
  % chance of some rain
• <10
  mm of rainfall expected
• 0
  no heat & humidity
• 6
  kph wind from NW

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Hamilton weather for Thursday 20th August 2026

Expect scattered clouds in Hamilton, Ontario with a maximum temperature of 25°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the north-west.

• 25
  °C maximum temperature
• 18
  °C minimum temperature
• 
  scattered clouds
• 11
  hours of sunshine
• 6
  UV index (High)
• 0
  mm of rainfall expected
• 25
  °C wind chill
• 3
  kph wind from NW

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Hamilton weather for Friday 21st August 2026

Expect scattered clouds in Hamilton, Ontario with a maximum temperature of 25°C, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the south-east.

• 25
  °C maximum temperature
• 16
  °C minimum temperature
• 
  scattered clouds
• 11
  hours of sunshine
• 7
  UV index (High)
• 0
  mm of rainfall expected
• 25
  °C wind chill
• 3
  kph wind from SE

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Sale

• Save on skiing holidays to Canada in winter 2025/2026
• Book early with Crystal Ski for the best deals
• Filter by promotional offers, duration, board basis & more

Go to Crystal Ski deal >>

View all Crystal Ski offers

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