Aside from various threats arising due to a low pressure system in the East, areas west of the Mississippi River largely keep under calm skies today.
Scattered showers will run amok in the East Coast states, but being ahead of the cold front and behind the warm front, expect the Southeast to charge up thunderstorms as well. A select few of these storms will turn severe, with hail and damaging winds possible from Florida's Big Bend into Virginia's Eastern Shore.
In southern New England and the lower elevations of New York, rain and snow will tango as a wintry mix when temperatures rise and fall through today, with mostly snow showers expected in the interior Northeast and northern Appalachia.
Elsewhere, high pressure dominates the weather pattern in the Central U.S., while the Western U.S. falls under drier air and weak systems. Even the Northwest, where a low pressure is revolving through, will wither into mostly isolated showers that fall as flurries over the Cascades and Rockies.
The pattern of high heat across the West persists through the end of the workweek, focusing highs in the 90s and isolated 100s onto the Desert Southwest. Still blazing 70s and 80s fan over the Florida Peninsula, the Gulf Coast, the High Plains, and the central Intermountain West.
More reserved 50s and 60s will lie over the Southeast, the northern Intermountain West, and the western Midwest, while a Canadian air mass cools the eastern Midwest and the rest of the Northeast into the 30s and 40s, Similar temperatures keep to the Pacific Northwest, although the Cascades are likely to remain in the 20s at most.