I'm not sure what specific information you need, but timeanddate.com has historical information for weather.

Bring your cursor onto the "Weather" tab, then click on "Past week" on the dropdown menu, then enter a place into the "Place or country..." search box. It will show the past 2 weeks, or you can search by month, going back years.

Here is an example for Gatineau, Quebec: https://www.timeanddate.com/weather/canada/gatineau/historic