PT,
Accuweather doesn't have a simple graph, but it will tell you wind speeds  
and directions, temps, humidity on an hourly basis. Current conditions aren't  
what you will have in two or three hours......at least on our lake. They also  
give you a projected fourteen day forecast that is fairly accurate......as 
best  can be. I find them correct about 65% of the time....not bad.
 
Rummy