If you're doing that, DEFINITELY no windy conditions exception.
If it's a fault, it's a fault. You play the conditions as they are.
You have to remember that league play is not the same as international, collegiate, etc. and there are already some minor format differences between league play and college, ITA, etc, for better or worse). My caveat is that both players must agree to the wind exception. If one does not, then no exception. Trust me...most players wouldn't even bring it up in a breezy situation, but I've had to play at least two league matches where the wind was literally blowing in swirls, gusts, etc...circus tennis...any shot can go anywhere, and difficult to even start the point. I'm talking about not just tossing and having to lunge a little extra to accommodate the toss -- I'm talking about putting up a short toss, and it's so windy that you're taking 1-2 steps along the base line to 'catch' the ball -- almost a side-arm serve...no one having any fun.
I understand this might be hard to fathom...'why not just move indoors?' in both cases it was the last match of the session, and the flight had to be completed that week as the matches would decide which team was advancing to the district tourney. Getting 16 guys (8 players X 2 teams), to reschedule 5 courts within a week is almost impossible...and in both cases, indoor court time at any of the closest indoor courts was unavailable that evening (match start @ 6:30 PM).
Trust me -- in the situation I had to play in twice, both teams (solid 4.0 players) were struggling to even make contact and get the serve over the net, into the box...forget about placement, pace etc...it was just stupid. we all just wanted to get the heck outta there but had to get the match in.