May 15, 2021 by Meteorologist, Michael Page
It seems we've flipped the switch, with reliably warm weather continuing across the South Shore this week.
So far this month temperatures are averaging a degree above average, and we'll add to that with more warmth ahead.
Mild Week
If you haven't already, because we've still had some chilly nights, it looks like it's finally time to turn off the heat.
Overnight temperatures all week will be in the 50s to near 60 degrees, with daytime temperatures staying warmer than normal for this time of year.
Monday will bring highs around 70 on average in Hingham. We may hold in the upper 60s right near the Harbor, due to a light seabreeze, but in South Hingham we'll climb into the low 70s.
Tuesday is warmer for all of us, with temperatures during the day surging into the 70s to near 80! Expect similar conditions on Wednesday.
Thursday turns a touch cooler, with highs dropping back into the upper 60s to near 70. We'll stay there for Friday, as well.
Lots of Sun, Not Much Rain
Each day this week will be similar, in that we'll enjoy a good deal of sun, particularly during the morning.
By afternoon you'll notice clouds bubbling up with the heating of the day. Some of those clouds will have dark bellies, and may produce a quick passing shower.
It's almost impossible to say where these pop showers will develop, because they are so random in nature. The warm sun this time of year heats the ground, then the ground heats the air.
That warm air near the surface then rises into chilly air higher in the atmosphere, generating the puffy clouds and the spot shower.
Bottom line: if one pops up, it will be quick to move through, so don't let it bother your plans.
Allergies Remain High
Tree pollen is now listed as very high around the South Shore, particularly in the oak, birch, pine, willow, and hickory categories.
Grass pollen is also now arriving on the scene. It's still low for now, but it will also keep climbing thanks to the dry pattern.