Despite starting the week relatively low, humidity will soon build around Washington, D.C., and allow drenching thunderstorms to return at midweek.
Those with outdoor plans and projects should take advantage of the dry stretch of weather through midday Tuesday. High pressure will be overhead during that time but will slowly depart.
Humidity will first increase on Tuesday, setting the stage for spotty afternoon thunderstorms to rattle a few northern and western suburbs.
The combination of the sticky air and a storm system moving in from the Midwest will bring more numerous thunderstorms to the nation's capital on Wednesday.
The most active time of Wednesday is likely to be the afternoon when some of the thunderstorms will unleash blinding and flooding downpours.
Commuters may be faced with a slow ride home, while flight delays are possible.
As long as the storm system creating Wednesday's storminess is not slower to depart, a dry Thursday should unfold before the thunderstorm chance quickly returns for Friday.
High temperatures this week will range from the middle 80s to the lower 90s. Average highs for the end of June are in the middle 80s.
AccuWeather.com Senior Meteorologist Alex Sosnowski contributed to this story.
Storms that brought gusty winds and heavy rainfall to the Upper Midwest on Tuesday will shift eastward to the Ohio Valley into Wednesday evening.
The risk of drenching and locally gusty thunderstorms will expand northwestward over the balance of the week, reaching parts of Southern California, Arizona and Nevada.
While the heat wave and high humidity will recede in the Northeast to finish out the week, 90-degree F air may linger in many areas into August.
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