USDA's Joint Ag Weather Facility says in the Corn Belt, scattered showers and thunderstorms—heaviest in the upper Midwest —are maintaining abundant moisture reserves for corn and soybean development. Some of the earliest planted corn and soybeans are reaching the reproductive stage of development, USDA adds. "In Illinois, for example, 8% of the corn was silking by July 7, while 9% of the soybeans were blooming," USDA details.
In the West, USDA reports an active monsoon circulation is providi ng local drought relief in portions of the Four Corners region. "Elsewhere, hot, dry weather is maintaining heavy irrigation demands but promoting the maturation of Northwestern winter grains," USDA reports. On July 7, all of California’s rangeland and pastures were rated very poor to poor, along with 88% in New Mexico, 86% in Arizona, and 72% in Colorado, according to USDA.
On the Plains, USDA says showers precede a surge of cooler air across Montana and the Dakotas, but hot weather persists farther south. "Today’s high temperatures will again top 100°F as far north as southern Nebraska," USDA elaborates. The ongoing heat is increasing stress on rangeland, pastures and rain-fed summer crops, especially in areas that have not received much rain in the last several weeks, USDA explains.
In the South, USDA reports scattered showers linger in the well-watered southern Atlantic states. Meanwhile pockets of unfavorable dryness have begun to develop in parts of the Mid-South, including much of Arkansas, according to USDA.
In its outlook, USDA says cooler, drier air will overspread the Midwest by mid-week, but widespread showers will return to the upper Midwest toward week’s end. "Meanwhile, a continuation of showery weather in the Southeast could lead to an additional 1 to 3 inches of rain during the next five days," USDA explains. Elsewhere, monsoon showers will continue in the Four Corners region, but mostly dry weather will prevail through week’s end across the Southern Plains, northern Rockies and Pacific Coast states, according to USDA. "The West will experience a short-lived reprieve from hot conditions late in the week," USDA continues.