Forecast discussion: After some wild weather in eastern Massachusetts on Tuesday, high pressure brought Boston sunny skies, calmer winds, and seasonable temperatures. However, for the next few days, it will feel more like autumn than the end of the summer.
A cold front will be coming down from Northern New England during the overnight hours, so our skies will see increasing clouds. The front will pass through during the late morning, and we will see some showers pass through into the early afternoon. Skies will begin to clear by the evening, as a strong high pressure system over Central Canada comes south. However, we will feel some Canadian air tomorrow night, as temperatures will dip into the upper 40’s in Boston. Temperatures will remain cool on Friday, as high temperatures will struggle to reach 70 degrees. However, with sunny skies and calm winds, inland areas should reach this mark.
Temperatures will slowly return to normal by Saturday, as the high moves closer to New England, and winds turn to the southwest. We will see some increasing clouds on Saturday night, as another cold front will come down from Canada, and bring some scattered showers for Sunday.
As we begin the new workweek, a new high pressure system will once again lower temperatures into the lower 70’s on Monday, before they slowly return to seasonable conditions. We will see a few more clouds on Wednesday, in advance of another cold front for Thursday.
Meanwhile, the Caribbean has become active, as the National Hurricane Center has issued the first advisory on Tropical Depression Seven. Seven was centered at 16.7N 66.2W, or about 120 miles south of San Juan, Puerto Rico. It has maximum sustained winds of 35 mph, and is moving north-northwest at only 2 mph. A Tropical Storm Warning is in effect for Puerto Rico, and a Tropical Storm Watch is in effect for parts of the Dominican Republic. The forecast is for the tropical to become a Tropical Storm within the next 24 hours, as it just passes over the eastern parts of the Dominican. The system will slowly turn to the north-northeast, due to a cold front that will be along the east coast. It will take it away from the east coast. The system will reach maximum winds of 65 mph within five days. You can see the latest track here.
72 hour forecast:
Tonight: Increasing clouds towards dawn with a low of 63.
Thursday: Mostly cloudy with passing showers by mid- morning, and ending by the end of the evening commute. We will see a high of 70 with north-northeast winds at 11-14 mph.
Thursday night: Becoming partly cloudy after midnight and cooler with a low of 50. Winds will come from the north-northwest at 6-9 mph.
Friday: Mostly sunny with a high of 68.
Friday night: Partly cloudy with a low of 50.
Saturday: Mostly sunny with increasing clouds near midnight. We will see a high of 76.
Saturday night: Mostly cloudy with a low of 60.
Sunday: Mostly cloudy with off and on showers until the early evening. Highs 76-79, lows 54-57.
Monday: Mostly sunny. Highs 71-74, lows 57-60.
Tuesday: Mostly sunny. Highs 75-78, lows 59-62.
Wednesday: Partly to mostly sunny. Highs 77-80, lows 60-63.