Weak high pressure building over the southwest will bring a slight warm up for midweek... then a dry trough of low pressure off the coast will push east through the area late in the week for a cooling trend.
Temperatures will remain mainly below normal with overnight to morning coastal clouds and fog persisting into the weekend.
United States WX Overview...
Showers and thunderstorms from the northern Plains to New England.
Less thunderstorm coverage across the southeast U.S..
Thunderstorms struck Barton Flats and Needles. Flash floods washed out a road and caused minor slides around Barton Flats. In Needles, flash floods washed out Highway 66 and damaged railroads. 100 people were made homeless as many washes turned into raging torrents.