Hamilton weather live forecast

Today's maximum temperature in Hamilton is expected to be 23°C. Select a day from the live weather forecast for Hamilton, Ontario, Canada for more weather parameters.

Sunday
2nd Aug
23

19

0

6
Monday
3rd Aug
25

16

9

5
Tuesday
4th Aug
27

15

8

8
Wednesday
5th Aug
28

15

0

8

5-day weather forecast updated at 04:01 on Friday 31st July 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 Sunday 2nd August 2026

Expect isolated thunderstorms in Hamilton, Ontario with a maximum temperature of 23°C, maximum UV of 6 (High) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 80% chance of some rain and little or no wind of 4 kph from the east.

23
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
6
UV index (High)
80
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
4
kph wind from E

Hamilton weather for Monday 3rd August 2026

Expect sunshine and showers in Hamilton, Ontario with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 25% chance of some rain and little or no wind of 6 kph from the north.

25
°C maximum temperature
16
°C minimum temperature
sunshine and showers
9
hours of sunshine
5
UV index (Moderate)
25
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
6
kph wind from N

Hamilton weather for Tuesday 4th August 2026

Expect broken clouds in Hamilton, Ontario with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.

27
°C maximum temperature
15
°C minimum temperature
broken clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
5
kph wind from N

Hamilton weather for Wednesday 5th August 2026

Expect isolated thunderstorms in Hamilton, Ontario with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 42% chance of some rain and little or no wind of 5 kph from the south-east.

28
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
8
UV index (Very High)
42
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
5
kph wind from SE

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Ontario - quick facts
Flight time^✝	8 hours
Time difference	UK -5 to -6 hours
Language(s)	English, French
Currency	Canadian Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes