D.C. Area Weather Forecast: Tropical air won't go away

Overnight: Risk evening thunderstorms then partly cloudy and very humid

Lows: 68-74 | Rain: 40% Chance T'storms early

Wednesday: Partly Cloudy, Very Humid, Warm, PM T'storms

Highs: 84-89 | Rain: 60% Chance by Afternoon

Thursday: Sunny, Hot and Humid, Still Risk PM T'storm

Highs: Near 90 | Rain: 30% Chance PM T'storm

This pattern over us isn't really any identifiable circulation from what had been Isaac, but the high humidity and tropical air is left over from the big storm last week.{ } With this very humid air, each afternoon there is the risk of afternoon thunderstorms.{ } Keep an eye on live Doppler.{ } There is no threat of any of the latest named storms coming near us but no dramatic cool refreshing air coming either.{ } Finally by late in the weekend into early next week a decrease in the humidity.