* Flash flood watch until midnight *

10:55 p.m. – Flood warning for parts of the immediate area

A boundary has been sitting over the immediate area since this afternoon and it has been lighting up much of the evening. Showers and storms continue to impact parts of the immediate area, and some zones have seen repeated storms for much of the past few hours. A few spots have picked up as much as three inches of rain or so. As such, a flood warning is up for parts of Fairfax and Arlington counties, plus the city of Alexandria, through the pre-dawn hours.

From 4:20 p.m…

It was a little cooler today, but that still meant highs were about 90 in many places. That’s on the hot side for the last day of August. Other folks, mainly north and northeast of the city, saw rain keep temperatures cooler. Everyone is still swimming in humidity. It’s the same general story Saturday, with temperatures on their way up again through the holiday weekend.

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Through tonight: Earlier storms did a good job of stabilizing the atmosphere in many spots. But with some late-day sun popping back up, and outflow boundaries bouncing around, it’s hard to rule out another storm or two into evening. Additional showers are possible overnight, but probably not of the flooding variety by then. Lows are in the low- and mid-70s in most areas.

View the current weather at The Washington Post.

Tomorrow (Saturday): It’s a lot like today. Humid, with rain chances building by lunchtime. Scattered showers and storms remain a good bet through much of the warmest time of the day, probably dwindling as we get into and through evening. Highs are in the mid-to-upper 80s or so.

Sunday: There’s still not a huge change in the pattern, but the front is washing out and high pressure is building back in. This should mean somewhat lower rain chances compared to today and Saturday, but there will also likely be a few showers and storms. Highs should head toward 90 in much of the region.

Monday (Labor Day): At this point, high pressure is the dominant feature in our pattern. That means lower rain odds and higher temperatures. Pretty much every area should try to top 90, with some heading toward 93 or around there. And of course, it will still be humid.

A monarch on a butterfly bush. (Michael Coffman /Flickr )

See Camden Walker’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.

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