In the West, a warming trend is underway, except across the region’s northern tier. The return to warmth is promoting the development of cotton and other crops in California and the Southwest. Meanwhile, scattered showers accompany the lingering cool conditions from the Pacific Northwest to the northern Rockies.

On the Plains, hot, dry weather is promoting winter wheat maturation and harvesting, but increasing stress on some rain-fed summer crops. Today’s high temperatures can be expected to range from 100 to 110°F on the central and southern High Plains.

In the Corn Belt, widespread showers and thunderstorms are slowing late-season soybean planting efforts, but maintaining generally adequate to locally excessive soil moisture for pastures and summer crops. In recent days, precipitation has been especially heavy in the vicinity of the Iowa-Minnesota-Wisconsin triple point, where some lowland flooding is occurring.

In the South, hot, humid weather continues to promote a rapid crop development pace.

Outlook: For at least the next 2 days, hot weather will persist in most areas east of the Rockies. Temperatures could approach 110°F across parts of the southern Plains. However, cooler air will arrive in the Midwest by Friday, and expand to cover most of the central and eastern U.S. during the weekend. During the transition to cooler conditions, widespread showers and locally severe thunderstorms will affect the eastern one-third of the U.S. Precipitation totals could reach 1 to 3 inches across the lower Southeast and 2 to 4 inches from the Ohio Valley into the Northeast. Elsewhere, initially cool conditions in parts of the West will be replaced by a late-week and weekend heat wave. The NWS 6- to 10-day outlook for July 1-5 calls for near- to below-normal temperatures across the central and eastern U.S., except for warmer-than-normal weather in New England. Above-normal temperatures will also prevail in much of the West. Meanwhile, near- to above-normal rainfall across the majority of the nation will contrast with drier-than-normal conditions from the Pacific Northwest into the upper Midwest.