Scattered showers, thunderstorms stick around DC region late Sunday before heat moves into town

Residents can anticipate a few more rounds of scattered showers and thunderstorms late Sunday after a cold front brought heavy rainfall across large parts of the D.C. region.

7News First Alert Meteorologist Mark Peña said the chance for continued storms wraps up around midnight, but not before a half-inch of rain accumulates. He warned that a “low end flash flooding threat” continues for low-water crossings “that tend to swell after heavy rainfall.”

The latest comes after Northern Virginia was placed under a flood warning alert by the National Weather Service. At the time, WTOP Meteorologist said rain was falling at rates of 2 to 3 inches an hour on Interstate 66 near Oakton, Fairfax and Vienna.

The District and surrounding areas were also placed under a flood watch. Both weather notices were lifted by 2 p.m. Sunday.

By Monday morning, however, commuters will be met with partly cloudy and patchy fog conditions and temperatures in the mid-60s, according to Peña. The day’s highest temperatures will peak around 90 degrees.

Heat and humidity increase Tuesday as winds turn southerly, with highs returning to the lower 90s under mostly sunny skies.

Dangerous heat builds Wednesday and continues into the Fourth of July holiday weekend. Highs reach the upper 90s and could approach 100, with heat index values between 102 and 107.

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