Based on the context and the answer, generate a question. 

Context: We went for a short walk today . The weather was glorious , actually almost uncomfortably warm , like summer giving us one last glimpse . It 's a lovely cool evening , now . First up , a really beautiful flower that was escaping from under someone 's fence . People ! Walking on OUR beach !

Answer:

Fall is coming .



What may be the reason for one last warm day ?