A frontal zone – which helped produce 1 to 3 inches of rain over the Cape during the last 36 to 48 hours – is slipping offshore today and will be replaced by a bubble of cold high pressure tonight and Tuesday.
While readings are in the 40s this morning, temperatures to our north and west over interior Southern New England are in the 30s and across Upstate New York and Northern New England readings are in the 20s. This colder air will build into our area later this afternoon and especially tonight and remain in place over the region through the day on Tuesday. In fact, temperatures will struggle to break the freezing mark Tuesday afternoon.
However, as has been the case numerous times in the last week or so, milder air will quickly return on the backside of cold high pressure and we should once again see temperatures cracking 50F by Thursday and Friday.