2:13AM
DAYS 1-5 (SEPTEMBER 29-OCTOBER 3)…
The pattern has set up with high pressure to the north and low pressure to the south, and this will continue through this period. But some drier air will work down from the north today and erode the cloudiness to allow some sunshine, especially north and west of Boston, and possibly right into the city and the immediate southern suburbs as well. Cloudiness will re-take these areas during tonight and Friday, and eventually by Friday night into Saturday the rain chance will increase as an upper low to the southwest gets closer while weakening. Rain chances should go down though clouds will probably continue to dominate Sunday before some clearing take place Monday (uncertain).
TODAY: Clouds break for sun north and west of Boston and into immediate Boston area. Clouds persist to the south and east with sprinkles/drizzle at times. Highs 58-67, coolest under the thickest cloud cover and mildest in interior southern NH. Wind NE 5-15 MPH interior and 10-20 MPH coast, with higher gusts at times.
TONIGHT: Mostly cloudy. Spotty mist/sprinkles mainly southeastern MA. Lows 52-58. Wind NE 5-15 MPH, higher gusts at times.
FRIDAY: Mostly cloudy. Spotty mist/sprinkles especially coastal areas. Periods of rain in the afternoon mainly South Coast region. Highs 58-65. Wind NE 10-20 MPH, higher gusts at times.
FRIDAY NIGHT: Cloudy. Periods of rain. Lows 52-58. Wind NE to E 10-20 MPH, higher gusts at times.
SATURDAY: Cloudy. Periods of rain. Highs 58-65. Wind E to NE 10-20 MPH, higher gusts at times.
SUNDAY: Mostly cloudy. Isolated showers/drizzle. Lows 52-60. Highs 60-68.
MONDAY: Mostly cloudy to partly sunny. Lows 52-60. Highs 62-70.
DAYS 6-10 (OCTOBER 4-8)…
Improving and milder weather October 4-5. We have not mentioned Matthew yet, mainly because it has no bearing on the first several days of the forecast period. The system will move westward through the Caribbean and likely strengthen from tropical storm to hurricane, before turning northward across Cuba and to a position near or east of the Bahamas. For a few days the idea has been that if the system was to impact this area it would most likely occur around October 6-7. This is still the case, but please know that there remain a wide range of possibilities with this system, from its strength, to its status of tropical versus post-tropical, and its eventual track. So for now we’ll leave it at a risk of rain/wind for a portion of the region during the October 6-7 time frame. Dry, windy, cooler weather would follow the passage of the system, hit or miss.
DAYS 11-15 (OCTOBER 9-13)…
Drier regime becomes re-established with fair and milder weather expected early through mid period then a few rain showers possible later in the period.