Yeah, I understand the feeling, wish I was at the field right now (it could be midnight and I'd wish I was at the field).

As far as how windy is too windy? Depends on which plane I want to fly. It's not too windy for my trainer until I line up for takeoff , apply power, and take off backwards. My Rascal 40 is ok until I can hover it off the ground, and my L-4 I won't fly until it is dead calm (too much time building it ---emotional baggage blah, blah. No, really , about 10 kts is all I like. After that it's more work than fun.