PM Update: The key is in the car

The rains predicted from Isaac’s remnants have underperformed - for the most part - but the humidity has not. A thick, muggy air mass holds in place through tomorrow when we probably have our best chance of scattered showers and storms. This is due to an approaching cold front which will serve as a focus for all of this moisture.

Through Tonight: Showers and thundershowers will be isolated to scattered (30-40 percent chance), and possible through the night. But a good number of us stay dry. It’s very muggy, with lows 70-75 (suburbs-city).

Wednesday: Showers and thundershowers are likely, with the best chance in the afternoon and evening. As opposed to the last couple of days, these should be fairly widespread - although forecasting summer showers and storms always has its limitations. Storms that develop could be locally heavy. Sky conditions are mostly cloudy, with the brightest skies in the morning to mid-afternoon hours. It remains warm and very humid, with highs in the mid-80s.

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

Pollen: Trees are LOW, grasses MODERATE, weeds HIGH and mold spores HIGH.

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.

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