A welcome break from recent heat and high humidity will last for a few daysfrom the Midwest to the Eastern Seaboard.On Tuesday, the cool outbreak was already capping daytime temperatures between65 and 75 F from the Great Lakes to northern New York and northern New England.
The same range of temperature will apply to these areas on Wednesday.
No less obvious will be the cool nights with 50s in the bigger cities and 40sin the countryside.
Slow day-to-day warming will build eastward in these areas on Thursday andFriday.
Meanwhile, the East Coast, which was still quite warm on Tuesday, will feel anoticeable drop in temperature and humidity on Wednesday and Thursday.
Temperatures along the I-95 corridor from Boston to Washington, D.C., will topout mostly between 75 and 80 F.
Outside the big cities, the Eastern corridor will cool to the 50s at night.
This refreshing spell will not last. By the end of the week, strong highpressure at the heart of the cool outbreak will head out to sea allowingtemperatures to soar toward the 90-degree mark on Sunday. A heat wave willlikely regain the weather headlines for the Midwest and the East during thefollowing week.
