A brief overview of today's weather sets the tone for the entire country. Numerous regions of the United States are being affected by wet and wintery conditions. There is a little bit of snow in northern New England, and a combination of precipitation is spreading across the Mid-Atlantic into the Great Lakes. Isolated storms are possible in some areas of the Midwest and Tennessee Valley, while the Southeast and Gulf Coast will remain dry. The Mountain West is mostly clear, with some high-altitude mixed precipitation. Storms and rain are affecting the Southwest and Northwest. Temperatures range from 30 to 40 degrees in the north to 70 to 80 degrees in the south and southwest.