Across the Corn Belt, a developing storm system is producing widespread precipitation, including upper Midwestern snow. Early Tuesday, the rain-snow line lies across southern Iowa and northern Illinois. Elsewhere, steady rain is overspreading the southern Corn Belt. Tuesday’s high temperatures will remain below 10°F in the Red River Valley of the North—but could rise to 65°F or higher in the lower Ohio Valley.
On the Plains, bitterly cold air remains in place across parts of Montana and the Dakotas, where Tuesday’s high temperatures will locally remain below 0°F. Meanwhile, record-setting warmth lingers across the southeastern Plains, where Tuesday’s high temperatures should range from 65 to 80°F. Critically dry conditions persist across the southern half of the High Plains, maintaining stress on winter wheat, as well as an elevated wildfire threat. In some locations across the southern High Plains, including Amarillo and Borger, Texas, there has been no precipitation since October 12.
