While surf will build along the coast at midweek, Bertha will remain well offshore of Boston and Cape Cod, Massachusetts.
Temperatures will rebound to more typical August highs by Tuesday.
Highs are forecast to be within a few degrees of 80 Tuesday and Wednesday. The average high for early August is 81 F.
More humid conditions will contribute to higher AccuWeather.com RealFeel® temperatures.
Only very spotty storms are forecast through Tuesday.
More numerous showers and thunderstorms are projected for Wednesday.
For those planning to spending time on Cape Cod or the islands, Wednesday's storms will coincide when Bertha causes surf to build and raises the risk of strong rip currents.
The showers and storms will not be associated with Bertha but rather a cool front approaching from the Midwest.
In the front's wake, the door will open for less humid air to arrive for late in the week. Temperatures will be shaved by a few degrees.
AccuWeather Senior Meteorologist Alex Sosnowski contributed content to this story.
Join us for the latest edition of AccuWeather LIVE.
After a brief warm spell that kicked off the workweek for Seattle, temperatures will tumble back to seasonable highs for the rest of the week.
Atlanta is facing a stretch of dry but windy weather into midweek that will lower temperatures for the area.
Frigid conditions will last through the middle of the week in Detroit as the area experiences a gap in snowfall.
Cold air will grip the Cleveland area through midweek before the chance of snow showers returns later this week.
Chicago is facing a stretch of dry, milder weather into midweek before another storm could hit the region.
Reading, PA (1950)
High 77 degrees -- January maximum. Because of an abnormally warm fall and an incredibly warm January, there was swimming in the Schuylkill and Tulpehocken on this "June in January" day.
Chicago, IL (1967)
Record 23 inches for a single storm (Jan. 26th-27th), including a record 19.8 inches in 24 hours. Some parts of So. Cook County received 27 inches. Wind gusts of over 60 mph combined with temperatures in the upper 20s; drifts of 4-8 feet common with some reaching a height of 12 feet.
Michigan, Indiana Ohio (1978)
Paralyzing Midwest blizzard: 100 killed, wind gusts to 100 mph, 25-foot drifts, many roofs collapsed.