The most recent six-to 10-day temperature outlook was issued on Thursday and is valid between October 22 and October 26. It shows a chance at above-average temperatures for a wide swath of the U.S. from the West Coast through the Upper Midwest. Parts of Maine and Florida are also expecting a rise in temperatures.

Many large American cities see their first snowfall sometime between late October and early December, with northern cities like Minneapolis and Denver experiencing snow first, and southern cities like Dallas picking up snow rarely and much later in the winter season, if at all.

A marine heat wave spanning much of the North Pacific Ocean is already influencing weather in North America and is poised to make its mark on winter. But forecasters have another global weather pattern to consider: La Niña.

Regions across the United States are under frost advisories and freeze warnings as a front drives temperatures into the 30s.