Since you seem to be mainly interested in weather, check out this site:
http://www.timeanddate.com/
Check out the holidays in the right column, then type in the name of the city you want information on in the search box in the top of the left column. You'll get weather for that city, plus a whole lot more.
These are also some useful resources:
http://www.voyage.gc.ca/preparation_...n/menu-eng.asp
http://www.voyage.gc.ca/publications/bon-voyage-eng.asp
http://www.voyage.gc.ca/countries_pays/menu-eng.asp
http://www.intercultures.ca/cil-cai/...uspays-eng.asp
http://www.customs.gov.au/site/page4224.asp
http://www.customs.gov.au/webdata/re...Travellers.pdf
Rick Steves mainly talks about travelling in Europe, but you can get some decent travel advice there. I love watching his shows.
http://www.ricksteves.com/
Some other sources of information ...
Lonely Planet:
http://www.lonelyplanet.com/
Fodor's:
http://www.fodors.com/
National Geographic:
http://www.nationalgeographic.com/
Outpost Magazine (HI Canada's magazine):
http://www.outpostmagazine.com/
Hostelling International:
http://www.hihostels.ca/