Metro Boston, North Shore and Metro West: After three days of temperatures hovering near 80 degrees we got a taste of reality on Tuesday with temperatures only in the 50s, cloudy skies along with a bit of spotty drizzle and sprinkles through the afternoon. Over the next few days temperatures will moderate but sunshine will be limited through the weekend as weather systems move very slowly.
High pressure to our north continues to bring an easterly wind off the cold Atlantic waters on Wednesday. This will keep it mostly cloudy and quite cool along the coast with spotty drizzle possible early in the day. Meanwhile, it will be a different story across the interior with skies becoming partly cloudy by the afternoon with milder temperatures as winds will tend to be more southerly. High temperatures ranging from the upper 50s along the coast to near 70 across the interior. Winds remain light at 15 mph or less.
Wednesday night brings a chance of spotty drizzle and patchy fog for everyone. Milder temperatures for the overnight with the lows from the mid 50s coast to upper 50s and low 60s inland. Winds stay light.
Low pressure will emerge out of the western Gulf of Mexico during Wednesday and is expected to be located in the Ohio Valley by Thursday morning. However, the low and associated frontal boundaries will move very slowly towards southern New England. This slow moving system will be responsible for mainly cloudy skies Thursday, with an increased threat for showers by Thursday night. You will also begin to feel an increase in humidity as a southerly wind begins to push milder moist air across the landscape Thursday into Friday. With the southerly wind taking over temperatures should climb into the low to mid 70s, except a bit cooler along any south facing coastline such as Cape Ann. Winds increase to 10 to 20 mph.
The chance for showers continues Thursday night with mild readings. Lows in the upper 50s to low 60s. South winds 10 to 20 mph.
Low pressure and the associated cold front inch closer to our area Friday. Tropical air will continue to ride northward along the Eastern Seaboard bringing a threat for heavy rain at night and into the start of the weekend. With that said we can expect numerous showers by late in the day and especially through the overnight and into Saturday. The rain could become heavy at times Friday night and early on Saturday. A gusty southeast breeze will also be in place. It stays mild and humid with highs on Friday near 70, cooling to about 65 Saturday. Lows Friday night near 60.
The cold front will move ever so slowly across the area over the weekend producing further chances for showers Saturday night through Sunday night. Temperatures eventually cool back with lows both nights in the low to mid 50s. Highs on Sunday near 60.
Damp and cooler conditions may persist into early next week as we remain in a stalled weather pattern. Any thoughts of a return to the summer like conditions we had recently will have to be put on hold for now.