Forecast discussion: Over several days of high pressure bringing dry weather, the center will continue to move into the Atlantic during the overnight. However, with some more moisture moving into the area, and temperatures falling due to clear skies, a Dense Fog Advisory is in effect for Boston. It will be in effect for all the counties surrounding the Boston area from 2 a.m. to 10 a.m. on Monday.
The high leaving will allow for a low pressure system in the western Atlantic to move north and west. However, this low will remain far enough away from New England to not greatly affect our weather. However, we will see mostly cloudy skies, and the south coast may see a passing shower.
The low will move towards the Canadian Maritimes early Tuesday morning, allowing a new high pressure system to our south to control our weather pattern. This high will also allow warmer air from the south to move into New England. We will see above normal temperatures for early October, starting on Tuesday. Highs into Saturday will be in the upper 70’s to even some lower 80’s. We may reach 80 degrees or more on Wednesday.
The next chance for any precipitation will be an approaching cold front over the Great Lakes by Saturday. The computer models all disagree on the actual timing of the cold front passing through the region. At this time, I believe we will see some showers starting in the mid-morning ahead of the front. It is possible we could see some heavier periods of rainfall when the front is overhead by the mid to late afternoon next Sunday.
72 hour forecast:
Tonight: Increasing clouds after midnight with a low of 49. Patchy to dense fog is possible in the capital city.
Monday: Mostly cloudy with a passing shower by the afternoon along the south coast. We will see a high of 66 with east-northeast winds of 8-11 mph.
Monday night: Clearing skies just after midnight with a low of 52. Winds will turn to the northwest at 4-7 mph.
Tuesday: Mostly sunny and warmer a high of 76.
Tuesday night: Clear skies and warmer with a low of 58.
Wednesday: Mostly sunny and very mild with a high near 81.
Wednesday night: Partly cloudy with a low of 58.
Thursday: Mostly sunny. Highs 76-79, lows 55-58.
Friday: Partly sunny. Highs 76-79, lows 57-60.
Saturday: Sunny during the day, becoming mostly cloudy by the evening. Highs 77-80, lows 56-59.
Sunday: Overcast with showers by the late morning. Highs 71-74, lows 54-57.