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D.C.-area forecast: Comfortable conditions today into tomorrow with late-week showers and a cooler weekend

Tuesday and Wednesday feature two nearly perfect days in a row

Mostly clear skies and bright sunlight over the World War II Memorial and Washington Monument on the morning of Sept. 4. (Jeanne McVey/Flickr)

Today’s daily digit

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

10/10: Savor these early autumn sunny and serene September days.

Express forecast

  • Today: Mostly sunny, pleasant. Highs: 71-75.
  • Tonight: Mostly clear and cool. Lows: 52-59.
  • Tomorrow: Mostly sunny with few clouds late. Highs: 75-79.

Forecast in detail

September is delivering the best it has to offer in the coming days with lots of sunshine, low humidity and pleasant breezes. Summer seems to be squarely behind us as the typical autumn feel of cool nights and warm days dominate. We’ll have to dodge some showers perhaps later Thursday into Friday ahead of a cold front, but it now seems like this weekend will be mostly nice, though noticeably a step cooler into autumn.

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Today (Tuesday): Mostly sunny skies with low humidity and temperatures warming to afternoon highs in the low to mid-70s. Sunshine may be milky at times due to the presence of wildfire smoke from California, Oregon and Washington. Light breezes from the north mainly at 5 to 10 mph. Confidence: High.

Tonight: Cool, mostly clear and comfortable as lows range through the 50s. Light winds. Confidence: High.

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Tomorrow (Wednesday): Another very nice day, but temperatures warm just a bit as mostly sunny skies for most of the day bring highs in the mid- to upper 70s. Some smoky haze may continue, and then clouds may move into the area late in the afternoon toward the evening with winds fairly light from the south. Confidence: High.

Tomorrow night: Partly to mostly cloudy with lows in the low to mid-60s. Confidence: High.

A look ahead

Thursday should be partly to mostly cloudy, with a chance for showers later in the day or toward evening. Highs are again in the mid- to upper 70s. Thursday night continues a chance for a scattered shower under mostly cloudy skies and lows in the 60s. Confidence: Medium-High.

Friday brings a cold front, mostly cloudy skies and the best chance for showers. As of this time, the core remnants of Hurricane Sally are forecast to stay to the south of our area, but it is something we’ll need to monitor closely in the days ahead. Otherwise, highs range in the low to mid-70s by the afternoon. Mostly cloudy Friday night with lows in the 50s and still some showers around. Confidence: Low-Medium.

The weekend could start with a few scattered showers early Saturday, but otherwise, mostly sunny skies should take over for both Saturday and then Sunday, with highs only in the mid- to upper 60s. Saturday night should be mostly clear and quite cool with chillier lows in the mid-40s in the outer suburbs to the crisp low 50s in the city. Confidence: Medium.

Read more about Capital Weather Gang’s confidence rating.