The first half of the weekend looks rather nice, but the second half not so much. Either way, the humidity is going anywhere anytime soon.

Another upper-level low pressure system will settle into the Great Lakes over the next few days, keeping us on the warm and humid side. We’ll stay dry for the most part on Friday and Saturday, aside from a few pop-up showers and thunderstorms each afternoon, mainly across the interior. Temperatures may reach 90 in many areas again on Friday, but as winds become more southerly on Saturday temperatures will be a few degrees cooler, but still well into the 80s in many areas, A frontal system will slowly move toward the region this weekend, and by Sunday it should be close enough to spread more clouds in. A wave of low pressure will develop along the front in the Mid-Atlantic states and ride it northward, bringing us more widespread showers and thunderstorms later Sunday and again on Monday, some of which could be locally heavy, again they’ll be most numerous across the interior.

Thursday night: Clear to partly cloudy with areas fog developing. Low 65-72.
Friday: A mix of sun and clouds, slight chance for an afternoon shower or thunderstorm, mainly well north and west of Boston. High 83-90, a little cooler at the coast.
Friday night: Partly to mostly cloudy with some patchy fog. Low 65-72.
Saturday: Partly sunny, chance for an afternoon shower or thunderstorm, again mostly well north and west of Boston. High 80-87, a little cooler at the coast.
Saturday night: Plenty of clouds, fog possible again. Low 64-71.
Sunday: More clouds than sun with afternoon showers and thunderstorms, especially across the interior. High 77-84.
Sunday night: Mostly cloudy, chance for a few showers. Low 64-71.
Monday: Intervals of clouds and sun with scattered showers and thunderstorms. High 76-83.