D.C. Forecast: Summer heat & humidity arrive on schedule for the holiday weekend

      This Afternoon: Mostly Sunny, Hot, Humid

      Highs: 86-89 | Wind: SE 5-10 mph

      Tonight: Partly Cloudy, Warm

      Lows: 66-70 | Wind: S 5 mph

      Saturday: AM Fog, Then Hot & Humid

      Highs: 87-91 | Heat Index: Mid 90s

      The whirring sound of air conditioners and the stifling humidity were sure signs across the Washington area yesterday that summer had indeed arrived.{} The hottest day on the month - it was 86 at Reagan National - was a preview of what looks to be a torrid holiday weekend, with highs each day around 90. Additionally, high dew points will make it feel especially uncomfortable, and heat indices could reach the mid 90s.{} Which means the seasonal precautions of staying hydrated, applying sunblock and avoiding exertion during the hottest parts of the day have become priorities again.

      Relief from the heat could{}come on Tuesday when{}a cold front currently across the Great{}Lakes is expected to impact the area. Its passage and a few showers{}should drop temperatures 5-10 degrees.{} High temperatures could drop into the 70s by week's end when yet another front could impact the area.

      NOTE: While these projected 90 degree temperatures are well above the seasonal norm of 78, they're hardly unusual.{} Just last year, which eventually registered as the hottest summer ever, the high readings for May 30, 31 and June 1 were 96, 98 and 98, respectively. Stay cool and enjoy your long weekend!