Keep the umbrella handy as drenching rains could return. Even if you don't see a drop, the very humid air will ensure a wet Sunday.
This Afternoon: Partly Sunny, Hot, Humid, Tstorms
Highs: 90-94 | Heat Index: 101
Tonight: Cloudy, Humid, Scattered Showers
Lows: 70-76 | Wind: W 5-10
Monday: Partly Sunny, Very Hot, Chance of Rain
Highs: 94-98 | Rain: 20%
Steamed eyeglasses and fogged windows early this morning were the most visible signs of the high humidity that is soaking this Sunday. Dew points started our in the oppressive mid 70s and are not going to vary much as the DC area braces for a day of partial sunshine, highs near 94, heat indices around 100, and the potential for yet more heavy downpours.The highly unstable atmosphere, the result of a warm front and a series of low pressures systems, will keep the threat of showers and thunderstorms in the forecast through Wednesday.
Monday will likely be the hottest day of the week with highs reaching to the upper 90s. High pressure is expected back by midweek with partly sunny days and highs in the upper 80s - the seasonal norm - lasting into the weekend.
While the end of meteorological summer comes with the last day of August, astronomical summer is just halfway finished. Not until late September will the autumnal equinox spell the end of the summer season that began in late June with the summer solstice. And considering that there are more days in the high 90s expected early this week, it appears that summer, no matter what calendar you're using, is far from making its final curtain call! Stay cool and enjoy the rest of your weekend.