Forecast discussion: A strong high pressure system over Long Island at the moment brought a beautiful Friday weather wise to Boston. It felt more like autumn than late summer, and we will face one more night of fall temperatures. Temperatures will warm up for the weekend, along with some passing showers on Sunday.
The high will slowly move offshore and into the Atlantic on Saturday. We will see some increasing clouds throughout the afternoon, with overcast skies by Saturday night. A cold front passing through northern New England will provide us with a few passing showers Sunday morning, before they end Sunday afternoon. By Sunday night, cooler air will return, and temperatures will fall into the upper 40’s.
We will remain cooler than normal on Monday, despite bright sunshine. We will slowly warm up by midweek, as a low pressure system moves closer to the east coast. It will shift winds to the southwest, allowing for warmer air and more moisture, increasing our dewpoint. The next cold front will be on Thursday, as I am expecting some decent precipitation and good rainfall, as the precipitation will continue into Friday afternoon.
In the tropics, a weak circulation near Mexico showed enough tropical characteristics to warrant calling it Tropical Depression Eight. However, the tropical has already moved inland, so it will dissipate within the next 24 hours.
72 hour forecast:
Tonight: Clear skies and cool with a low of 55.
Saturday: Mostly sunny with increasing clouds through the afternoon. We will see a high of 79 with southwest winds at 10-13 mph.
Saturday night: Mostly cloudy with showers developing after midnight and a low of 62. Winds will come from the west-southwest at 7-10 mph.
Sunday: Mostly cloudy with passing showers through the morning, before ending in the late afternoon. We will see a high of 77.
Sunday night: Skies becoming clear with a low of 49.
Monday: Mostly sunny with a high of 71.
Monday night: Partly cloudy with a low of 55.
Tuesday: Mostly sunny. Highs 75-78, lows 62-65.
Wednesday: Partly to mostly sunny. Highs 80-83, lows 66-69.
Thursday: Overcast during the morning, with rain/possible thunderstorms by mid-afternoon. Highs 79-82, lows 61-64.
Friday: Showers/rain ending in the late afternoon. It will remain mostly cloudy for the rest of the day. Highs 73-76, 53-56.