A robust monsoon surge interacting with the tail of a cold front will result in a continuation of locally heavy showers from the Southwest and Intermountain West to the southern Plains. During the next 5 days, additional rainfall could reach 3 to 5 inches or more in the Rockies of Colorado and northeastern Mexico. Meanwhile, rainfall totals should range from 1 to 3 inches on the southern Plains and 1 to 2 inches across the Intermountain West. In contrast, hot, mostly dry weather will cover the Northwest. Farther east, several days of cooler-than-normal weather will dominate the central and eastern U.S. Heavy rain will end later Monday in the Northeast, but scattered showers will linger for several days in the Great Lakes region and across the Deep South.
Looking ahead, the 6- to 10-day outlook calls for above-normal temperatures in the Far West and across the nation’s northern tier, while cooler-than-normal conditions will prevail from the central and southern Rockies to the middle and southern Atlantic States. Meanwhile, near- to above-normal rainfall across the majority of the nation will contrast with drier-than-normal weather in portions of the central U.S., stretching from Louisiana northward into the upper Midwest.