Wind & Weather
For best winds it should be cooler in Vancouver than in Squamish and cooler in Squamish than Whistler.  Clear skies in both Squamish and Whistler usually mean good wind. If it is rainy and cool in Vancouver it will likely howl.
1. Review the forecast and weather sites and cams in Vancouver, Squamish and Whistler.
2. Check the wind pattern for the past 7 days on iwindsurf.com or ikitesurf.com; if the weather pattern is the same, the winds will be similar as well.
»Wind Talker 604 892-2235
»www.iwindsurf.com (wind conditions paid service)
»www.ikitesurf.com (wind conditions paid service)
»Vancouver Weather (also Traffic Webcams)
    Environment Canada (current and 5 day forecast):
        »Marine Forecast for Howe Sound (Squamish)
        »Vancouver
        »Squamish
        »Whistler

Windsurfing (equipment, lessons, sales & service and rentals if applicable)
»www.robertssailboards.com
»www.samireland.com (Instructional Video)
»www.tridentsports.com
»www.river-rippers.net
»www.skypilotkiteboarding.com
»www.nssb.com (North Shore Ski & Board)
»www.windance.com
»www.airtimeboardsports.com
»www.windsure.com (lessons and rentals in Vancouver)»

Kite Boarding (equipment, lessons, sales & service and rentals if applicable)
»www.island.net/~nitinat/kite-win.htm (Nitinat Windsurfing Society) 
»www.cobrakite.com (safety)
»www.skypilotkiteboarding.com (lessons in Squamish)
»www.airtimeboardsports.com
»www.tridentsports.com
»www.seatoskyoceansports.com (kite repairs in Squamish)
»www.nssb.com (North Shore Ski & Board)
»www.windsure.com (lessons in Vancouver or Boundary Bay )