
Above-average temperatures for the next few days:
As high pressure over the extreme western Atlantic continues to march eastward, surface level winds swing around to the southwest, drawing warmer air in from the southern states. Under crystal clear skies, high temperatures will rocket towards the 70s, nearly 10-15 degrees above average for this time of year.
Saturday is basically a carbon copy of today, and will possibly be even warmer as temperatures attempt to break into the mid 70s.
As for how Sunday shapes up-I think most of the day will be just fine before a cold front makes an approach on the Mid Atlantic. Models POPs (Probability Of Precipitation) are relatively low (less than 10%) during the early afternoon Sunday, but increase to near 20-30% by sunset. As for actual precipitation...most of the moisture associated with this system now looks to be contained well north of the region in New England/southeastern Canada, and with minimal lifting taking place as the front traverses the Appalachians, rain showers will be hard pressed to make it into the metro region.
Nonetheless, don't be surprised to see a sprinkle or two overnight Sunday in the District, but chances of precip increase somewhat the closer you are to the mountains.
By Monday morning, the front has cleared the region, ushering in somewhat cooler temperatures, as highs drop into the mid/upper 60s.
Image above right: Roof Cam of Washington, DC courtesy of WJLA.com

Generally, we would expect to see peak color on our trees in the metro region by the end of October, but with above-normal temperatures and above-normal rainfall, the trees around the region want to stick around a bit longer before shedding their leaves.
Looking out the window now, I can see moderate color on the leaves, but definitely not near peak here. The weather.com map to the left reveals a general gist of fall colors around the East Central states. By mid November we'll be in for those beautiful fall colors.
Fall colors along the Mid Atlantic courtey of weather.com
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