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.