Across the Corn Belt, warmth continues to build northward. Later Tuesday, temperatures should reach 70°F or higher as far north as western Iowa and southern South Dakota. In contrast, chilly conditions linger across the northern Corn Belt. High temperatures will remain mostly below 32°F from the Red River Valley of the North into the upper Great Lakes region. Elsewhere, lowland flooding lingers in parts of the lower Midwest, following a wet February.
On the Plains, sudden warmth is further reducing topsoil moisture and increasing stress on rangeland, pastures, and winter grains, following last week’s cold spell.
