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PM Update: Another scorcher Wednesday with some late thunderstorms

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PM Update: Another scorcher Wednesday with some late thunderstorms


* Excessive-heat warning through 8 p.m., and heat advisory Wednesday *

Our broken record of punishing heat keeps on playing. Highs made the upper 90s to near 100 Tuesday afternoon, the fifth day in a row at 97 degrees or higher in D.C. Feels-like readings were more like 105 to 110 most of the mid- and late day. The city topped out at 111 degrees at 2 p.m., which was the leader in the Lower 48 at that point. With high humidity entrenched, temperatures won’t fall far Tuesday night. And we’ll be set up for the same Wednesday, as a cold front knocks on the door.

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Through Tonight: A random thunderstorm is possible through about sunset. It could drop briefly heavy rain, but dry conditions should prevail otherwise. Lows should end up in the mid-70s to low 80s. Winds will blow from the south around five to 10 mph.

View the current weather at The Washington Post.

Tomorrow (Wednesday): We’ll awake to another steamy morning as temperatures spike with the rising sun. Some clouds should bubble into the midday, and afternoon highs should be fairly similar to Tuesday, with mainly mid- and upper 90s. There’s a better chance of scattered thunderstorms than Tuesday, and some could be strong. But it looks like they’ll hold off until late afternoon or evening.

See Matt Rogers’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter and Instagram. For related traffic news, check out Gridlock.

Rain ahead? Friday offers the best chance of a soaking in a while, but it’s still far from guaranteed locally. Much will come down to the exact placement of the remnants of a cold front entering the area late Wednesday. That front is expected to push south and east of us into Thursday. Model runs have suggested it will be close enough to douse the Interstate 95 area and east, but data has ticked eastward somewhat. Given a sharp drop of rain expected on the western side, any shifts can cause significant changes in expectations.

Below are the latest American and European model outputs for rainfall.

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