Weather Underground Forecast for Friday, July 13, 2012. Rain showers persist across the Southeast, while showers and thunderstorms develop over the Southwest and Great Basin on Friday. Onshore flow from the Gulf of Mexico will support more shower and thunderstorm development from the Mid-Atlantic states through eastern Texas. However, the stalled frontal boundary that has lingered over the region all week will weaken, and severe thunderstorm development is not likely. However, some areas may see another 3 to 4 inches of rain on Friday. Thus, flooding will remain of concern for the Gulf coast. Meanwhile, the rest of the Eastern US will see another sunny and dry day as high pressure dominates the region. Temperatures will remain near seasonable with highs in the 80s from the Northeast through the Ohio River Valley. Just to the west, a trough of low pressure moving through central Canada continues pushing a cold front through the Upper Midwest. This will produce showers and thunderstorms across Minnesota, Iowa, and Wisconsin. Out West, monsoonal moisture maintains showers and thunderstorms over the Southwest and Great Basin. These storms may turn severe with strong winds. Due to prevailing hot and dry conditions, these strong winds will increase fire danger over the Southwest, Great Basin, and Intermountain West. Temperatures in the Lower 48 states Thursday have ranged from a morning low of 33 degrees at West Yellowstone, Mont. to a high of 104 degrees at Lovelock, Nev.