Its never good weather when you are at hand. No weather is ill if the wind is still. Only recently found this one, but it makes sense. If there is no wind I believe at the worst it will only be light rain. I am not aware how this would effect a land where snow settles for many months of the year.
Flowers smell best just before the rain.
Have not heard it before, but it could be possible. When leaves show their back, rain we won't lack. Have not heard it before, may be possible, but I would need convincing of this one. Bees do not swarm before a storm. Have not heard it before, but it could be possible as a storm means low air pressure and when bees swarm they are going to look for a new home.