Wiktionary
rain delay
n. The interruption of an outdoor event because of rain, with the expectation that it would continue later.
Usage examples of "rain delay".
There were many questions on my youthful mind regarding what we were going to do in regards to the rain delay, how we would get through the day, and how our game would be affected.
Apart from the French rain delay, every launch had been successful.
Most of the second chapter was written during a rain delay at Fenway Park!
There's a fair chance of a rain delay on account of thunderheads forming in the fly lofts.