Forecast discussion: A strong high pressure system continues to give all of Southern New England dry weather, along with sunshine with a mix of clouds. However, a wind coming off the water on Sunday and a low pressure system to our south will actually keep temperatures cooler than Saturday.
The high pressure system will remain in place, just like it has the last few days. However, a low pressure center off the Carolina coastline will help create a new low off of Long Island, NY this evening. The low will remain away from Boston, but the Cape and Islands will see overcast skies tomorrow, with the threat of a passing shower. By Sunday night, the low will move into the Atlantic, and the high will once again allow drier air back over the state. You will notice that warmer, more humid air will return by early next week, as we return to the dog days of August. We may even reach 90 degrees by Wednesday.
The next chance for any precipitation will be on Thursday afternoon, when a cold front moves through the area. We could see some showers and thunderstorms into early Friday morning, before a new high pressure system helps to clear our skies and brings back some cooler, less humid air.
Finally, Tropical Storm Erin has not increased in any intensity since my last weather report. At this time, the National Hurricane Center says Erin will slowly move to the west-northwest and run into wind shear, despite moving into warmer sea temperatures. Because it will not have any upper level support, the tropical will slowly weaken into a remnant low within 96 hours, and then dissipate within 120 hours. Erin will not make any landfall at this time.
72 hour forecast:
Tonight: Partly cloudy with a low of 62.
Sunday: Mostly sunny with a possible sprinkle across the Cape and Islands. We will see a high of 80 with southeast winds at 7-10 mph.
Fenway Park Forecast (8:05 p.m. vs. New York Yankees): Mostly cloudy, 69.
Sunday night: Mostly cloudy skies clearing out after midnight. We will see a low of 61 with winds shifting to the west-southwest at 6-9 mph.
Monday: Mostly sunny and warmer with a high of 85.
Monday night: Partly cloudy with a low of 67.
Tuesday: Mostly sunny and warmer with a high of 87.
Tuesday night: Partly cloudy and mild with a low of 67.
Wednesday: Mostly sunny. Highs 87-90, lows 68-71.
Thursday: Increasing clouds by the afternoon, with showers and thunderstorms by the early evening. Highs 86-89, lows 67-70.
Friday: Showers/thunderstorms end by the early morning and becoming mostly sunny. Highs 83-86, lows 64-67.
Saturday: Mostly sunny. Highs 78-81, lows 63-66.