DAYS 1-5 (SEPTEMBER 27 – OCTOBER 1)
At dawn this morning, temperature ranged widely from the upper 30s across interior lower elevations to the lower 60s on the outer part of Cape Cod. As sunshine dominates the landscape today under high pressure, the temperature will even off across the region as they rise significantly from the chilly inland lows and rise modestly from the mild coastal area lows, so that these areas will have a fairly similar high temp in the middle 60s. Outside of those details, the general idea is nice weather is finally here and will be with us today and tomorrow under the influence of high pressure. One thing about our sunshine though, it will be filtered at times by additional high altitude wildfire smoke from Canada as their long fire season goes on. Additionally, we’re still in “that pattern”, which means we have to keep an eye on something that can turn the weather unsettled to prevent a longer stretch of fair weather. Once again we’ll be keeping an eye on low pressure sitting south of New England as a low pressure trough swings eastward from the Great Lakes and Ohio Valley late this week. This trough will help develop that low which will have an inverted trough with it extending northward as if it’s trying to grab onto New England. There is some variety in the guidance we look at as to how this feature is going to behave and impact our region, but right now it looks like it will at least give us more cloudiness from Friday to early Saturday, and at least the chance of a period of wet weather favoring areas south of I-90 with highest chance in the South Coast region. Some fine-tuning is obviously needed in the short term and I’ll have a more detailed breakdown of this on the next update. I am pretty confident though that this episode will not mimic the coverage and length of time of the last one – this being a much shorter-lived bout. High pressure builds in again for the return of fair weather as we move through the weekend.
TODAY: Mostly sunny. Highs 61-68. Wind N up to 10 MPH.
TONIGHT: Mostly clear. Patchy ground fog interior low elevations. Lows 47-54, 40-47 in some lower elevation locations. Wind N under 10 MPH.
THURSDAY: Mostly sunny. Highs 63-70. Wind N-NE up to 10 MPH.
THURSDAY NIGHT: Mostly clear early, then clouds return later. Patchy ground fog interior low elevations. Lows 48-55. Wind variable under 10 MPH.
FRIDAY: Mostly cloudy. Chance of rain by late in the day, favoring southern areas. Highs 60-67. Wind E 5-15 MPH.
FRIDAY NIGHT: Mostly cloudy. Chance of rain, favoring areas south of I-90. Patchy fog in valleys, swamps, and bogs. Lows 50-57. Wind SE under 10 MPH.
SATURDAY: Clouds give way to sun. Highs 65-72. Wind E up to 10 MPH.
SATURDAY NIGHT: Clear except foggy areas low elevations. Lows 45-52. Wind calm.
SUNDAY: Early fog patches dissipate otherwise sunny. Highs 68-75. Wind variable up to 10 MPH.
DAYS 6-10 (OCTOBER 2-6)
A little more confident in a drier weather pattern during early October. Temperatures variable, starting out above normal then dropping back toward normal after a cold front delivers a Canadian air mass mid period.
DAYS 11-15 (OCTOBER 7-11)
The large scale pattern still maintains the tendency for high pressure to our north and low pressure to our south, and while the trend remains for the high to exert more influence and our pattern to stay on the drier side, we still remain vulnerable to a northward push of low pressure from the south bringing a period of wetter weather at some point. Temperatures near to above normal.