The week will begin the same way the weekend finished with plenty of inclement weather across the Eastern and Western U.S.

A weather pattern in gridlock will deliver plentiful weather headaches to begin the work week, particularly near the Rocky Front Range to the Southwest, and from the Ohio and Tennessee valleys to the Carolinas and central and southern New England.

Throughout the day, locally heavy rain will be squeezed out in addition to a couple strong thunderstorms from central New England to North Carolina, and the eastern Great Lakes. Urban flooding, especially in poor drainage areas, could happen from Hartford, Conn., to New York City and Philadelphia. Pittsburgh to Washington, D.C., and Richmond, Va., may be peppered by a late afternoon to early evening gusty thunderstorm.

Afternoon and evening downpours and thunderstorms will flare up in southeastern Florida; briefly gusty winds and torrential downpours will be possible from Melbourne to Miami, Fla.

Showers and thunderstorms will be problematic from the Lone Star State to along, east, and west of the Rocky Front Range on Monday. A soggy beginning to the week will usher most outdoor activities indoors. Even a few dangerous thunderstorms may rumble across western Texas to far southeastern New Mexico by late afternoon before multiplying during the evening and overnight. Lubbock, Midland, and Abilene, Texas, will need to keep a close eye on the sky.

Luckily, a mix of near-freezing temperatures and moisture will limit accumulating snow to the highest peaks of the San Juan and Southern mountains across Colorado and Utah. Up to 10 inches could fall above 9,000 feet.

The West Coast, much of the Plains and Mississippi Valley, Deep South, and northern New England will begin the week rain-free.

The warmest temperatures will be found across the northern Plains, Upper Midwest, parts of the Mid-Atlantic to Florida, and from the Northwest to much of California. Highs will jump into the 60s, 70s, and 80s here. Similar highs are forecast from southeastern Texas to the Deep South and Gulf Coast, with a 90-degree reading or two possible.

Meanwhile, chilly to cold weather will occur across the Southwest to the Texas/Oklahoma panhandles, in most of Montana, the Ohio and Tennessee valleys, and parts of central and southern New England. This is where highs will range from the 20s and 30s over the tallest peaks to the lower elevation 50s, 60s, and lower 70s.