We went to Europe (LOTS of fun) for a week last May, and the weather varied. While we were in London, the weather varied from nice and sunny to overcast and a bit chilly. When we took the train up to York for a day, it was cold and rainy. Nearly drowned.
We spent a day in Paris before coming home to the U.S., and the day began as warm (a bit muggy) and partly cloudy...and then at night while we were having dinner in the Eiffel Tower restaurant, the clouds opened up like you wouldn't believe. Thunder, lightning, the whole bit...but it didn't deter all the soccer hooligans who were in town for the European Cup semi-finals.