Car almost stalls only in rain

I have a 2000 Chevy Malibu. I know it seems old but I take care of it. Just hit 119k miles. It drives very well except I have noticed lately that it almost stalls out sometimes only when it’s raining…then after it warms up awhile it goes away. It has never actually stalled just feels like it by the rpm and shaking. Any ideas? I hope it’s nothing serious.

It could be a bad coil reacting to the humidity. The most common failure that I’ve seen though is your spark plug wires. Replace them first and see if the problem goes away. I think it will.