Agree. I have trusted the Environment Canada forecasts for years. Web and basic app. The government-issued stuff isn't as featureful or pretty as some apps, but I go back to it every time because its track record here (Vancouver) has been good to me.
I wish there was an API or non-scraping approach to retrieve the daily & hourly forecasts. With the popularity of open data policies on tax-funded public data... it seems there should be.