Clear sky charts are forecasts for specific locations that are cleverly extracted from satellite photographs collected by Environment Canada for weather forecasting. The forecasts provide a lot useful information about observing quality beyond just cloud cover.
Below, I've included a few charts for Toronto and several Scout Camps we use:
|Blue Springs Camp|
|Camp Goodyear (WildFlower Obs.)|
|Haliburton Scout Reserve|
Thanks to Attilla Danko and Allan Rahill (at CMC) for this resource. If you find it useful, please use the email links on the charts home page and let them know.
Update: The name Clear Sky Clocks was changed to Clear Sky Charts to avoid a trademark issue with a company called Sky Clocks.