7:00 AM | **Slow-moving storm system to bring us rain here late Wednesday into Thursday...strong NW winds, colder conditions to follow**
Paul Dorian
6-Day forecast for the Washington, D.C. metro region
Today
Becoming mainly sunny after early day clouds, breezy, mild, highs in the mid-to-upper 60’s (normal high is now 57 degrees at DCA); NW winds increasing to around 5-15 mph
Tonight
Partly cloudy, brisk, chilly, lows in the mid-to-upper 40’s
Tuesday
Partly sunny, mild, lower 60’s for afternoon highs
Tuesday Night
Mainly cloudy, cool, maybe a shower or two, near 50 degrees for late night lows
Wednesday
Mainly cloudy, quite mild, chance of rain late in the day and at night and there can be a thunderstorm, mid-to-upper 60’s
Thursday
Partly sunny, windy, colder, chance of showers, lower 50’s
Friday
Partly sunny, windy, cold, upper 40’s
Saturday
Partly sunny, windy, chilly, lower 50’s
Discussion
The first half of the new work week will be relatively quiet and mild, but the weather turns quite active later this week as a deepening upper-level trough dives into the Mid-Atlantic region. This strong upper-level trough will become a slow-mover thanks to strong blocking high pressure to the north over northeastern Canada. At the surface, an initial low pressure system will head towards the Great Lakes in the late week time period and then a secondary low should form near the northern Mid-Atlantic coastline.
The end result of this unfolding scenario should be occasional rain here from later Wednesday into Thursday morning and there is a slight chance of a thunderstorm. Scattered rain showers are then possible on Thursday afternoon and evening as the atmosphere will remain quite unstable. In terms of temperatures, after a mild day on Wednesday ahead of the cold front, it turns noticeably cooler on Thursday and it’ll remain quite chilly on Friday with highs limited to the upper 40’s to close out the work week. The winds will become quite strong on the backside of this low pressure system from a northwesterly direction and should last all the from later Thursday through much of the upcoming weekend given the storm’s slow movement.
Meteorologist Paul Dorian
Arcfield Weather