Whilst our 737 operation is far less weather dependent than S76Heavy's heli ops, I would say when bad Wx conditions prevail, a heightened sense of alertness tends to exist. One is listening to other traffic's radio calls, studying the weather radar carefully, checking alternate destination's met reports, that sort of thing.
It is NOT a nice feeling when you can't get into your destination due to weather, having just minimum fuel required to divert to your alternate destination, for this reason we might take another 15/30 minutes of holding fuel to lower the blood pressure.