A high pressure system will maintain its control across the eastern third of the country today, tonight and tomorrow. It’ll promote not only dry weather, but unseasonably mild conditions. After a crisp and chilly start, the sun today will be accompanied by a light, southwest wind and temperatures will peak in the low-60s. In most cases, these values will average 3-6 degrees higher than they were on Thanksgiving Day.
Tonight will turn out mainly clear, and the sun should be back out in full force tomorrow. Most temperatures will be in the lower or even the middle-60s, except along parts of the Eastern Shore and right along the Bay.
The next wave of low pressure and cold front that will be having an impact on our weather will be moving across the Great Lakes region and the Ohio Valley tomorrow night and early Sunday. And, depending upon which of the global models you believe, the tendency for clouds to increase and thicken around here on Sunday will either be followed by some rain late in the afternoon, or it will manage to hold off ’til Sunday night. Either way, we do anticipate that there’ll be a “period of transition” occurring here on Sunday, or a switch from the combination of bright sun and unusual warmth for late-November today
and tomorrow to a somewhat cooler and wetter period later Sunday and Sunday night.
And, since the Thanksgiving holiday weekend will be drawing to a close on Sunday, there’ll be almost as many folks travelling across the nation as there was last Wednesday. The temperature forecast will be tricky on Sunday afternoon, because if there’s enough sun early in the day, then the mercury will probably still be able to surpass 60 (which is something we’re counting on). But, we could also see how certain locations may fail to get out of the 50s.