DAYS 1-5 (OCTOBER 1-5)
Welcome to October 2025! We’ll start the month off with a cool interlude, between some warm end-of-September days and another upcoming warm-up. First, we have a northeasterly air flow of cool Canadian air between a large high pressure area to our north and offshore tropical activity – where Hurricane Imelda is gaining strength and organization southwest of Bermuda while Hurricane Humberto, northwest of Bermuda, weakens rapidly and is set to merge with an upper trough before its remains become absorbed by Imelda, which will batter Bermuda later tonight through tonight, before quickly moving on and losing tropical characteristics heading into the North Atlantic waters. The only impact of note for our area, besides the gusty coastal breeze, will be some large ocean swells and rough surf along the coast during the next couple days, which can lead to some splash-over and minor flooding during high tide times. We are not at a time of astronomically high tides so this will lessen the impact somewhat. Weather-wise, we keep a dry spell going on through the coming weekend, with a significant warm-up in the cards as high pressure first drifts over our region then sinks to the south, giving us a toasty return flow, making the first weekend of October feel a tad bit more like late summer instead.
TODAY: Ocean-effect clouds MA South Shore to South Coast, dissipating later. Otherwise sunny. Highs 60-67. Wind NE 5-15 MPH except 15-25 MPH eastern coastal areas including higher gusts, especially MA South Shore to Cape Cod.
TONIGHT: Clear. Lows 42-49. Wind NE 5-15 MPH except 15-25 MPH Cape Cod including higher gusts.
THURSDAY: Sunny. Highs 58-65. Wind NE 5-15 MPH, higher gusts, diminishing during the afternoon.
THURSDAY NIGHT: Clear. Patchy low elevation fog. Lows 38-45. Wind calm.
FRIDAY: Sunny. Highs 65-72. Wind variable under 10 MPH then SW up to 10 MPH.
FRIDAY NIGHT: Clear. Lows 51-58. Wind SW up to 10 MPH.
SATURDAY: Sunny. Highs 72-79, coolest South Coast. Wind SW 5-15 MPH.
SATURDAY NIGHT: Clear. Lows 53-60. Wind SW 5-15 MPH.
SUNDAY: Sunny. Highs 75-82. Wind SW 5-15 MPH.
DAYS 6-10 (OCTOBER 6-10)
High pressure parked to the south continues the fair, warm weather early next week until a cold front from the west brings a chance of showers sometime during the second half of October 7 through the first half of October 8 – based on current expected timing. This will be followed by a return to dry weather but with cooler air for the balance of this period.
DAYS 11-15 (OCTOBER 11-15)
Expectation continues to be for a zonal flow (generally west to east) pattern with some up and down temps and only a brief shower threat (~October 13). The warm-up would occur before shower threat, then a cool-down after.