Rose bud problem
One of my rose buses bloomed like crazy right after all the rain we had. It looked like it was going through another blooming cycle with tons of buds, but they are turning brown before they open. I have two other rose bushes next to it that are doing fine.
Limestone County Texas
If the leaves are unaffected then it is thrips. If you have spots on leaves then It could be botrytis blight. Can happen with big weather changes and in your case heavy rain. More than likely though its probably thrips. Get yourself some ornamental insecticide and spray that affected plant. Thanks