Rain was forecast for New England, but the rest of the Northeast was expected to be mostly sunny.
Clear skies were forecast for most of the Southeast, though Florida was expecting scattered showers and storms.
A cold front was expected to push onshore in the Pacific Northwest and bring rainy weather.
In the Southwest, California and most of Nevada were expected to remain mostly clear. Rain was forecast for the Four Corners region.
Temperatures in the Lower 48 states Friday ranged from a low of 37 degrees at Embarrass, Minn., to a high of 119 degrees at Death Valley, Calif.