Another storm will trek across the Plains toward the Mississippi Valley. While no significant snow will be associated with this storm from northern Texas through the Plains, the main effect will be to reinforce the cold air already in place in the Plains. Dallas as host of the Super Bowl on Sunday afternoon can expect unseasonably cold air with temperatures in the lower 40s or upper 30s at game time.
In the West, a warm front moving through the Northwest will produce rain and some high-elevation snow, mostly in Washington.
Northeast temperatures will rise into the 20s and 30s, while the Southeast will see readings in the 30s, 40s, and 50s except for Florida, where 60s and 70s are expected. Temperatures across the northern Plains will rise into the 20s and 30s, while the Northwest will see temperatures in the 30s and 40s.
Temperatures in the Lower 48 states Saturday have ranged from a morning low of -9 degrees at Berlin, N.H. to a high of 87 degrees at Melbourne, Fla.
Weather Underground: http://www.wunderground.com
National Weather Service: http://iwin.nws.noaa.gov