Monday's Weather Outlook

Rain accessories and heat will be in the forecast across many parts of the nation with the calendar flipping past the month’s midpoint. A fall preview will be on the weather menu too.

Showers and thunderstorms will likely have wipers working feverishly from eastern Kansas to central Wisconsin and northwestern Michigan. Omaha, Neb., Ames, Iowa, and La Crosse, Wis., are a few cities found in this soggy and stormy zone to begin the workweek.

Most of this early day activity will weaken or even dissipate, with new downpours and thunderstorms bubbling farther east and south during the afternoon and evening. This will mean the Great Lakes and Middle Mississippi Valley to the central and western High Plains, to the Deep South and western and central Gulf Coast may have outdoor plans interrupted or ushered indoors for a time.

Maryland, the District of Columbia, extending to the Carolina Piedmont and beaches, as well as the Sunshine State and along parts of the Interstate 10 corridor will have showers and thunderstorms percolate during the afternoon and evening also. Locally heavy rainfall and frequent lightning will be the primary headaches.

Meanwhile, an increase in monsoonal moisture may lend to showers and thunderstorms bubbling across the taller terrain in southern New Mexico. A shower or thunderstorm will be possible along the northern fringe of a massive high pressure in the Northwest and across parts of Montana.

Oodles of sunshine and summer weather will dominate most everywhere else except for parts of the Northeast, near the U.S.-Canada border, and along the West Coast, especially near the Pacific beaches.

Temperatures will jump into the 80s, 90s and triple digits for many across the nation, with the hottest readings found in the Middle and Lower Mississippi valleys and Southwest. A nice change of pace will be found from North Dakota and Minnesota into the Mid-Atlantic and New England. Here, afternoon highs will have an autumn feel, peaking in the 60s, 70s, and a few lower 80s. Similarly, many Pacific beaches will only manage the 60s and  70s, with seasonably cool 80s to lower 90s governing California’s Central Valley.