In retrospect, Fall had been subtlety folding into Winter for several weeks now. After the 5 inches of snow last Friday night and Saturday, it can be confidently stated that Winter has arrived. In the short term, above freezing temperatures during the day might allow for some late season mowing. In the long term, it might be time to winterize the lawn mower.
-Nemo recommends ethanol free gas and some gas stabilizer.