Light rain late last night, followed by a freeze warning. The big box stores that were foolish enough to already have their tender annuals outside will likely be selling singed plants now. Another chance for frost Monday night, but that will probably be the last one of the year. As a rule, we usually don't get another freeze after Mother's Day, when the big rush for plants begins. DW & I are going today to beat the rush, she still wants a few more flowers... and I'll use the pots from those to pot up some of the tomatoes.
EDIT: forecast updated to another freeze warning tonight. We had sleet this afternoon. The cold air pouring out of Canada just keeps coming, the weather guessers are consistently under-estimating it.