After nearly a week dominated by expansive high pressure, low pressure will temporarily take over heading for the weekend. The area of high pressure will continue to drift eastward away from New England today and Friday, though dry weather will continue to dominate during this time. Clouds will begin to increase on Friday, however.
On Saturday, two systems will be around New England. The first is a cutoff low pressure to the west and the second is a coastal storm that will pass offshore to the east. Some ridging will likely develop between these two systems, leading to a mainly dry Saturday for most of New England. The exception will be far western New England, who will be closer to the incoming cold front during the afternoon. Here, scattered showers could break out in the afternoon. Far eastern Maine could also see activity from the passing storm.
Heading into Saturday afternoon and night, the coastal storm will impact Nova Scotia as it moves away from New England. This storm is now being monitored by the National Hurricane Center as it may try to take on some tropical characteristics. The NHC currently gives the storm a 20% chance of development. This doesn’t change anything or heighten concerns, it’s just an interesting development. The system will likely cause rough surf in the Gulf of Maine.