** North and West of DC: Freeze Warning 2 AM to 8 AM Tuesday **** DC and Points South and East: Frost Advisory 2 AM to 8 AM Tuesday **After an extended summer, a record-breaking rainless streak, and most recently a deluge of drought-denting rain, fall will finally start to feel like fall this week. Cool mornings, some mild afternoons, and mostly sunny skies should prevail during most of the next 7 days.
Today
A fine fall day ... frosty night. The center of high pressure moves overhead, giving us sunny skies and light winds (near 5 mph). From morning lows in the low-to-mid 30s in the burbs to the low 40s downtown, temperatures should climb to afternoon highs near 60. Tonight, clear skies and calm winds will allow lows to drop to near 30 in the suburbs and near 40 downtown.
The Upcoming Week at a Glance
Warmest Day: Wednesday, Near 70.
Coolest Days: Today, Near 60; Friday-Saturday, Upper 50s to Upper 60s; Sunday, Upper 50s to mid 60s.
Best Chance of Rain: Thursday and Sunday, but chances are looking slim.
Dry Days: Possibly every day.
The Week's Wild Cards: Is this week the beginning of another extended dry streak? Will weak cold fronts on Thursday and Sunday have any noticeable impact on our weather?
Average High/Low: 64-61/45-43
Tuesday
Much the same ... a touch warmer. Once again, high pressure will provide bright sunshine, allowing chilly morning lows to warm steadily toward afternoon highs in the mid 60s. Overnight, clear and cool with lows in the low-to-mid 40s in town, mid 30s in the burbs.
Wednesday
Sunny, another notch warmer, nice trick-or-treat weather. As high pressure moves offshore, southerly flow warms the air mass some more. Another day of bright sunshine should turn a cool morning into a mild afternoon with highs near 70. In the evening, temperatures should be dropping through the mid and low 60s during trick-or-treat time. Then partly to mostly clear and not as cool overnight with lows in the low 50s in town, mid 40s in the burbs.
Thursday
Probably about the same. If there was any day during the coming workweek that even had the potential for a rain shower it would be Thursday, as the next cold front comes through. But as of now, the chances of even an isolated shower look to be on the slim side. Instead, I think we're likely to see a partly to possibly mostly sunny day with highs in the upper 60s to near 70. Overnight, partly to mostly clear with lows in the upper 40s in town, mid 40s in the burbs.
Friday-Sunday
Partly to mostly sunny, mostly dry. Behind Thursday's cold front, high pressure sets up shop for Friday into Saturday. The result should be partly to mostly sunny skies both days with highs in the upper 50s to upper 60s (maybe breezy on Friday). Friday night and Saturday night, partly to mostly clear with lows in the upper 30s to 40s. Sunday, a weak cold front may approach from the west. While it could bring increased clouds and a chance of a shower, it may also fizzle and have little impact on our weather. For now, I'll call Sunday partly to mostly sunny with highs in the upper 50s to mid 60s and a slight chance of a shower.