Take an umbrella so you don't get peed on by strays.
Did that.
It threw down bucket fulls of water while we were in the supermarket, no thunder though. By the time we'd finished shopping it was glorious sunshine with a few fluffy white clouds.
Driving home it rained qgain, stopped for us to unload the car then started again for a few minutes. Then peed it down for about half an hour.
We've had one downpour since. It's now blue sky and a comfortable 27c (80f)
Rain again? I don't know. The tour de france is currently passing about 10km from us. I hope it stays dry for them.