Temperatures will make a run well into the 80s and could touch 90 F Wednesday afternoon with high humidity, before cooler and less humid air returns to Boston.
The latest in the season the temperature has hit 90 F for the first time around Boston was on Aug. 6, 1906. So, if temperatures stop short of 90 F, there is a long way to go before a record is broken for late-season 90-degree temperatures.
As cooler air begins to move back in Wednesday evening, there is the chance of a locally heavy, gusty thunderstorm.
Dry weather and at least partial sunshine are in the offing Thursday, Friday and Saturday.
There is a chance of moisture returning from the south and west on Sunday in the form of spotty showers and thunderstorms.
Tropical Depression 8 has formed east of the Carolinas and should strengthen into a tropical storm before impacting the coastal Carolinas early this week.
Despite struggling to do so last week, a tropical system bears watching to develop as it enters the Gulf of Mexico and turns back toward the northeastern Gulf Coast of the United States.
Brief relief from heat and humidity will arrive in the northeastern United States at the start of September.
Typhoon Lionrock is poised to make landfall in Japan near Sendai early in the new week with heavy rainfall, damaging winds and an inundating storm surge.
Hawaii is facing two tropical threats this week as Madeline and Lester churn westward.
Slow-moving and repetitive downpours will raise the risk for flash flooding along the western Gulf Coast into early week.
Rochester, MN (1979)
2.73 inches of rain fell in 50 minutes making this the wettest August on record. (9.52 inches of rain so far this month). The heavy downpour flooded the streets of Rochester, stranding about 1,500 cars.
A five-state tornado outbreak in Nebraska, Kansas, Wyoming, Iowa and Missouri occurred on this date. In all, 20 tornadoes were reported. Nine were in Iowa. One near Farragut, IA, in the extreme SW corner of the state, caused several fatalities and numerous injuries.
Sherman Pass, WA (1980)
2 inches of snow.