Forecast discussion: Boston received one of those hazy, hot, humid weather days on Tuesday. The high temperature for the day reached 91 degrees at Logan Airport, with our dewpoint temperature in the upper 60’s. This will make the night uncomfortable for sleeping if you do not have a fan or air conditioning. Also, we will see the slight chance of passing showers or thunderstorms after midnight. A disturbance well ahead of a cold front is helping to create strong thunderstorms over central New York and Pennsylvania at the moment. This line of weather should reach Southern New England after midnight. However, the activity will not last very long. Also, expect patchy to dense fog along the coastline, especially the Cape and Islands.
As we head into Wednesday, we will see a repeat of today’s weather. We may have more haze in the sky, allowing for partly sunny conditions. The dewpoint temperatures will remain very uncomfortable, and temperatures should reach 90 degrees inland. Thanks to the southwest winds, those along the southern shore will be much cooler. The threat of seeing strong thunderstorms by the early afternoon will remain.
The computer models feel the strong cold front now in the Great Lakes will begin to move into New England. It will not be until Thursday morning that the front moves offshore. So, we will still have the threat for some strong thunderstorms into Thursday morning. By then, high pressure engulfing the Rockies will bring cooler, drier air, thanks in part to the winds switching to the northwest. It will be less humid for the weekend, and temperatures for the day will reach the lower 80’s, which is seasonable as we head into the middle of July.
As we close the weekend, a new cold front will slowly begin to create scattered showers and thunderstorms ahead of it. We will see the risk of more scattered showers and thunderstorms by Monday morning. The front will move ever so slightly eastward, meaning the threat for more precipitation continues into next Tuesday. High temperatures will remain in the lower 80’s into early next week.
72 hour forecast:
Tonight: Mostly cloudy with the risk of isolated showers or thunderstorms. Some thunderstorms may have period of heavy rain, gusty winds and small hail. Patchy fog is expected along the south coast. We will see a low of 72.
Wednesday: Partly sunny with scattered showers and thunderstorms. Some thunderstorms may be strong. We will see a high of 91 with south-southwest winds of 11-15 mph.
Fenway Park Forecast (7:10 p.m. vs. Chicago White Sox): Partly sunny, chance of shower or thunderstorm during game, 83.
Wednesday night: Scattered showers and thunderstorms with a low of 67. Thunderstorms could be strong during the overnight. Winds will be westerly at 4-7 mph.
Thursday: Showers/thunderstorms end by 8 a.m. with partly sunny skies. We will see a high of 82.
Thursday night: Partly cloudy and less humid with a low of 65.
Friday: Mostly sunny with a high of 81.
Friday night: Partly cloudy with a low of 64.
Saturday: Partly to mostly sunny. Highs 81-84, lows 65-68.
Sunday: Partly sunny through the day, with mostly cloudy skies and a possible shower before midnight. Highs 82-85, lows 68-71.
Monday: Showers/thunderstorms by mid-morning. Highs 81-84, lows 68-71.
Tuesday: Showers/thunderstorms. Highs 80-83, lows 65-68.