I haven’t noticed rain or storms increasing my MG symptoms, but heat and humidity does.

So far I can say I haven't experienced that.

That will be a definite yes for me. My energy is drained there's a storm even when it's raining.

for me storms very much affect me but heat and humidity are definitely worse, muscle weakness (thank goodness for my power chair), breathing, double vision my body is basically a soup sandwich

Willam2 that is so true. With having OA, my joints be hurting me so bad days before it is going to rain or storm. My children thought I was losing it at first, but now they understand. I'm thankful that they do. Now that I have MG, the pain is just insane.