A surge of warmth will invade the eastern U.S. this week putting decades-old temperature records at risk of being broken.
A large section of the nation extending from the southern Plains to Ohio Valley and into the Northeast and mid-Atlantic will experience temperatures 10 to 20 F above average each afternoon over the next few days. In some cities, high temperature records will be broken.
"A strong area of high pressure over the Southeast will help funnel very warm air northward for the first half of the week," AccuWeather Meteorologist Andy Mussoline said.
As a result, the air will feel more like the beginning of September rather than mid-October.
The warmest air on Monday will be found across the Plains to the Midwest where upper 80s and 90s will be widespread during the afternoon.
Some cities such as St. Louis, Little Rock, Arkansas, Tulsa, Oklahoma, Memphis and Nashville, Tennessee could tie or perhaps break high temperature records.
This warmth will shift east heading toward the middle of the week and by Tuesday and Wednesday it will be focused on the Northeast, mid-Atlantic and Southeast. Temperatures are expected to rise into the 80s outside of the Appalachians. Even in the Appalachians, temperatures will make it into the 70s.
"Highs in the upper 70s and 80s are more typical during the last weeks of summer across the Northeast and mid-Atlantic," Mussoline said.
Some records will be at risk from the Ohio Valley to the Deep South on Tuesday. By Wednesday, New York City, Philadelphia, Baltimore, and Washington, D.C., could watch records fall as temperatures reach well into the 80s.
In addition to daytime temperatures being well above average, overnight lows each night through the middle of the week will be exceptionally mild as well, only dropping into the 50s and 60s across the Northeast.
Some areas that have already seen their first frost and freeze may not see the temperature drop below 55 through Wednesday.
With several chilly nights occurring this past week, many people have started to dig out the winter jackets and coats. However, those can be put aside for a few days this week and replaced with more summerlike clothing.
With high pressure in control, dry weather with sunshine is expected early this week across the Plains to the Northeast. This will provide beautiful weather to get outside and enjoy the fall foliage or attend local autumn festivals.
The upcoming warm stretch could have a negative affect on leaf color, leaving leaf-peepers disappointed. Mild days and cool nights are usually ideal when it comes to the best foliage colors. However, days and nights this week may be too warm and could cause colors to become dull.
The dry weather is bad news for New England where drought continues. Rainfall deficits over the past three months range from 4 to 8 inches in a large section of the region.
The next chance of rain may come during the second half of the week across the Northeast. A storm system may form along a slow-moving cold front across the region and could deliver a round of soaking rain Thursday through Saturday.
As for the warmth, cooler air will follow in behind this system this weekend and will help bring temperatures back to normal or slightly below normal. If enough cold air is pulled southward out of Canada, the northern Great Lakes could see their first snowflakes.