After a frosty start for many, plenty of sunshine will lead to a remarkable temperature recovery with highs reaching the 60s for many across the region as high pressure – a fair weather dome – begins a slow migration to the east of New England on the North Atlantic.
Eventually this new position for the high pressure cell becomes important, as the clockwise airflow around its center will induce a southerly wind flow towards New England, further increasing the amount mild air and humidity in the northeast.
The milder change will be evident first: high temperatures likely to top 70 degrees on Friday for some, then Saturday, Sunday and Monday for many. It’s worth noting that there’s some historical context here: our Tevin Wooten dug into the record books and it turns out that we’ve only seen eight November spells of three or more consecutive days at 70 degrees.
Also, if we reach or exceed 73 degrees these days in Boston, which is our first alert team’s forecast, it has only happened four times in recorded history! As for the daily records, they will be difficult to achieve but not impossible, especially on Sunday when the record is 73, set in 2015.
As for precipitation, there isn’t much in the forecast, but increasingly humid air on Sunday coupled with a cold front slowly approaching from the west will increase the chance of showers on Sunday afternoon. in northern and western New England. While these are unlikely to sneak into eastern New England, it’s not far off in the weather world, so we’ve introduced a possibility of downpour even in the area. from Boston by late Sunday to early Monday.
As for a more significant pattern change, it still looks like much cooler air – closer to normal for this time of year – will return for the middle and end of next week, towards the end of our exclusive 10-day forecast from First Alert.