USDA's Joint Ag Weather Facility says on the Plains, isolated showers are developing from Montana into the Dakotas. "Elsewhere, dry weather accompanies late-season warmth," USDA adds. The warm weather is promoting wheat emergence and establishment in areas with adequate soil moisture; however, the drought-stricken southern Plains need rain, USDA explains.
In the West, USDA says cool air and isolated showers are beginning to overspread the northern Rockies and the Pacific Northwest. "Elsewhere, warm, dry weather continues to promote autumn fieldwork," USDA reports.
In the Corn Belt, a band of showers is crossing Ohio and Indiana, where summer crop harvesting has been delayed by late maturation and autumn wetness, USDA says. "Across the remainder of the Midwest, corn and soybean harvest activities are proceeding on or ahead of schedule," USDA reports.
In the South USDA says cool weather lingers across Florida, but warm air is overspreading the remainder of the region. "Fieldwork activities include winter wheat planting and cotton, soybean, and peanut harvesting," USDA says.
In its outlook, USDA says in advance of a strong cold front, early-week temperatures will exceed 90°F across portions of the southern Plains. "However, a surge of cold air will encompass much of the nation during the second half of the week," USDA adds. By Thursday morning, USDA says temperatures below 20°F can be expected as far south as the central High Plains. "Cool weather will be short-lived across the western half of the U.S., where late-season warmth will return during the weekend," USDA says. Meanwhile, five-day precipitation totals may exceed an inch in the central and southern Rockies and from the southeastern Plains into southern New England, including the Ohio Valley, USDA reports.