7:01AM
DAYS 1-5 (JULY 21-25)…
During the overnight hours, a clear sky, light wind, and low dew point allowed temperatures to drop into the 50s in many areas away from the cities, while the asphalt and cement of the urban areas held temperatures in the 60s – the urban heat island effect. But this morning the sun will go to work and temperatures will heat up fairly rapidly and end up fairly uniformly in the 80s in all areas by about noon. The difference during the afternoon will be less pronounced, but still there, as many interior areas make a run at 90 while the coast is a little cooler due to a light sea breeze. So today will be a good clear air natural weather lab kind of day in southern New England. As high pressure sinks to the south and a southwest wind flow gets going by tonight, the humidity will increase, and this will lead to a hot and humid day on Friday, but an approaching upper level disturbance and series of surface troughs will lead to more cloudiness at times as well as the risk of a few waves of scattered showers and thunderstorms right into Friday night. Any storms have the potential to be strong, but at this time it does not look as if the entire area will be swept with strong or severe storms and that such weather will be isolated to scattered at best. The heat will hang around for the weekend though may ease back slightly for part of the weekend. Saturday will still carry a slight risk of isolated thunderstorms as a final disturbances traverses the area. The next disturbance due later Monday will again increase the risk of showers and storms.
TODAY: Sunny. Highs 75-82 Cape Cod and Islands, 82-87 other coastal areas but may cool down slightly during the afternoon, 87-92 elsewhere. Wind light W but with light coastal sea breezes developing.
TONIGHT: Mostly clear. Increasingly humid. Lows 60-65 except 65-70 urban areas. Wind light SW.
FRIDAY: Intervals of clouds and sun. Isolated to scattered showers and thunderstorms possible. Humid. Highs 78-85 South Coast, 86-93 elsewhere. Wind SW 10-20 MPH with higher gusts.
FRIDAY NIGHT: Variably cloudy. Isolated to scattered showers and thunderstorms. Any storms may be strong to locally severe. Humid. Lows 67-74, warmest urban areas. Wind SW to variable 5-15 MPH.
SATURDAY: Partly to mostly sunny. Slight risk of isolated thunderstorms. Humid. Highs 80-87 Cape Cod and Islands, 88-95 elsewhere. Wind NW 5-15 MPH.
SATURDAY NIGHT: Partly cloudy. Humid. Lows 67-74, warmest urban areas. Wind light NW.
SUNDAY: Mostly sunny. Humid. Highs 78-85 Cape Cod and Islands, 86-92 elsewhere.
MONDAY: Partly sunny. Chance of afternoon and evening showers/thunderstorms. Humid. Lows 65-75, warmest urban areas. Highs 84-91 South Coast, 92-98 elsewhere.
DAYS 6-10 (JULY 26-30)…
Warm and humid with a risk of additional showers and thunderstorms July 26 as a disturbance passes through the region and a frontal boundary sits nearby. High pressure brings fair, warm, and less humid weather July 27. More humidity and a risk of showers/storms returning sometime July 28-29 before a return to warm to hot and dry weather by the end of the period.
DAYS 11-15 (JULY 31-AUGUST 4)…
A warm to hot and dry start then humidity returns with a few episodes of showers/thunderstorms at times in the early days of August.