USDA's Joint Ag Weather Facility says in the Corn Belt, unsettled, showery weather continues in several areas, including the Ohio Valley and the upper Midwest. Growing conditions in most of the Midwest remain favorable for immature summer crops, and have recently improved in drought-affected areas of the eastern Corn Belt.
In the South, USDA reports a plume of tropical moisture continues to spread northeastward from the western Gulf Coast region. A few of the showers are affecting southern Louisiana, where extensive lowland flooding persists. In contrast, hot and humid but mostly dry weather prevails in the Southeast.
On the Plains, very warm, mostly dry weather favors summer crop maturation and fieldwork, including spring wheat harvesting, USDA states. Today’s warmest weather, relative to normal, will occur across the northern and central High Plains, where highs should generally range from 90 to 100ºF.
In the West, a late-summer heat wave continues, except in the southern Rockies and along the immediate Pacific Coast. Heat favors crop maturation and fieldwork, including Northwestern small grain harvesting, USDA observes.
In its outlook, USDA says that in many areas from the Rockies to the East Coast, a very active weather pattern will continue through the weekend. In much of the central and eastern U.S., five-day rainfall totals could reach 1 to 3 inches, with locally higher amounts in thunderstorms. In contrast, hot, dry weather will persist in the Far West. Meanwhile, a significant surge of cool air will reach the northern High Plains on Thursday and overspread the remainder of the nation’s mid- section during the weekend. Scattered, late-week temperatures could dip below 40ºF on the northern High Plains. Elsewhere, hot, humid weather will persist for several more days in the eastern U.S., USDA concludes.