The temperatures in Trois Rivieres in August are comfortable with low of 14°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Trois Rivieres during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Trois Rivieres in August 2025.
If you’re planning to visit Trois Rivieres in the near future, we highly recommend that you review the 14 day weather forecast for Trois Rivieres before you arrive.
Temperatures
24° / 14°
Rainy Days
7
Snowy Days
0
Dry Days
24
Rainfall
165
mm
Sun Hours
10.7
Hrs
