Temperatures will be riding the rollercoaster this week, but in general, we’ll be on the dry and cool side much of the time.

High pressure builds in today with temperatures that are not only significantly cooler than what we had over the weekend, but below normal for late May. Despite plenty of sunshine, temperatures will only be in the 60s to lower 70s today, with the coolest readings along the coast, thanks to a seabreeze off the still-cool Atlantic. After a chilly night tonight, temperatures will start to moderate on Tuesday as high pressure moves offshore and winds become southwesterly.

Low pressure will head into southeastern Canada on Wednesday, dragging a warm front across the region early in the day. This will result in a return of heat and humidity. A few showers or storms could accompany the warm front, but the temperatures will be the big story, as most of us will get well into the 80s once again, with lower (perhaps middle) 90s possible. The heat won’t last long though, as a cold front will swing through the region Wednesday evening or night, with some showers and thunderstorms likely ahead of it.

High pressure builds in behind the front on Thursday with drier and cooler conditions. This brings us to the Memorial Day Weekend. There is still some uncertainty among the models as to what we can expect next weekend. The models are in decent agreement that we’ll have high pressure centered over southeastern Canada while low pressure moves out of the Midwest and into the Mid-Atlantic states before spending much of the weekend south of New England while only slowly drifting eastward. They mostly agree that this means we’ll be on the cool side from Friday into Monday, with temperatures mainly below normal. What they don’t agree on is exactly where the low pressure system tracks, and whether it will send any precipitation our way (which also has an impact on the temperature forecast). For now, we’re going to lean on the dry side and be optimistic, but there is a chance that the long weekend could feel more like mid-Spring than the “traditional start of summer.” We should have a better handle on it for our Weekend Outlook on Thursday.

Monday: Sunshine and a few clouds. High 65-72, cooler along the coast.

Monday night: Clear to partly cloudy. Low 46-53.

Tuesday: A mix of sun and clouds, breezy. High 73-80, cooler along the South Coast.

Tuesday night: Variably cloudy, just a slight chance for a shower or thunderstorm. Low 57-64.

Wednesday: Partly sunny, breezy, and humid, showers and thunderstorms possible late in the day and at night. High 84-91, cooler along the South Coast.

Thursday: Partly to mostly sunny. High 77-84, cooler along the coast.

Friday: Partly sunny. High 59-66.

Saturday: Partly to mostly sunny. High 61-68.

Sunday: Partly to mostly sunny. High 62-69.

Memorial Day: A mix of sun and clouds. High 64-71.

It looks like it’s finally time to put away the winter gear and break out the summer gear, if you haven’t already. We’ve got some warm weather on the way for much of the upcoming week.

High pressure will be in control for the next several days. However, we’ll also have some weak upper-level disturbances moving across the region. What that means is that much like the past few days, we’ll start out with sunshine in the morning, then clouds develop, followed by some showers and thunderstorms, and once the sun sets, everything winds down and skies clear out. That’s what will happen today and to a lesser extent on Tuesday as well. High pressure becomes a little more dominant on Wednesday with sunshine and warmer weather. Temperatures may top 80 on Wednesday away from the coast.

Thursday is when we may see some changes start to take place. It still looks like a sunny and warm day well inland, but closer to the coast, a backdoor cold front may move in, ushering cooler air in to eastern parts of the region during the afternoon. That cooler air may hang around for Friday and Saturday as a disturbance moves across the region with more clouds and possibly some showers. Some of the models try to bring the warm air right back in on Friday and/or Saturday, but as we’ve learned the hard way over and over again, extended stretches of warm weather are hard to come by during Spring here in eastern New England. The ocean is still quite cool, and has a big impact on temperatures at this time of year. With this in mind, we’re going to lean cooler than some of the models (and nearly all of the talking heads on TV). Sunday should be warmer again as winds shift into the west ahead of a cold front, which may produce showers and thunderstorms.

Monday: Sunny to start, then clouds develop and some showers and thunderstorms pop-up. High 70-77, a little cooler along the coast.

Monday night: Becoming clear to partly cloudy. Low 48-55.

Tuesday: A mix of sun and clouds, chance for a shower or thunderstorm. High 73-80, coolest along the coast.

Tuesday night: Partly cloudy. Low 51-58.

Wednesday: Sunshine and some afternoon clouds. High 77-84, cooler along the coast.

Thursday: Early sun, then some clouds move in, a shower is possible late in the day. High 77-84, but temperatures may drop into the upper 50s or 60s during the afternoon, especially along the coast.

Friday: Intervals of sun and clouds. High 69-76, coolest along the coast.

Saturday: More clouds than sun with a chance for a few showers. High 68-75.

Sunday: Partly to mostly cloudy, showers and thunderstorms are possible late in the day. High 74-81.

We’ve got a fairly quiet week coming up for the first time in a while.

Low pressure pulls away from the region this morning, with rain coming to an end. We’ll see some clearing this afternoon, but an upper-level low pressure area will move through on Tuesday with more clouds and possibly a shower or two. High pressure builds in for Wednesday and Thursday with generally dry conditions and a warming trend.

The end of the week is a little uncertain at the moment, but it doesn’t look that bad. Another upper-level low will move into the Northeast, so we’ll have more cloudcover at times, with a few showers possible each afternoon. Most of these won’t be that heavy, and they shouldn’t be that widespread, so overall, the weekend shouldn’t be that bad. Temperatures should be on the mild side, likely near to above normal for mid-May.

Monday: Showers end early, some afternoon sunny breaks. High 56-63.

Monday night: Partly to mostly cloudy. Low 40-47.

Tuesday: Intervals of clouds and sun, chance for a shower or two, breezy. High 57-64.

Tuesday night: Partly cloudy. Low 37-44.

Wednesday: A mix of sun and clouds. High 56-63.

Thursday: Sunshine and some afternoon clouds. High 62-69.

Friday: A mix of sun and clouds, chance for an afternoon shower. High 63-70.

Saturday: Partly sunny, showers possible during the afternoon. High 64-71.

Sunday: Intervals of clouds and sun, chance for a few showers. High 64-71.

This is definitely not shaping up to be a great week to be on vacation, but it is shaping up to be a decent week to put another dent in our developing drought.

A cold front moved through late yesterday, and it will stall out south of the region today. With the front nearby, we’ll have plenty of clouds around today, with temperatures that are much cooler than we had on Sunday. We could see a few breaks of sun, but in general, clouds will dominate. By late in the day, we’ll see some more showers moving in as a wave of low pressure rides along that frontal boundary. Those showers should come to an end Tuesday morning, but again, we’ll still have lots of clouds around, with temperatures possibly becoming quite cool behind that wave. Another wave will approach during Tuesday night and Wednesday. This wave may lift the front northward, allowing milder air to move back in to at least part of the region. That wave moves offshore on Wednesday, bringing an end to the rain and dragging the front much farther offshore. High pressure then builds in for Thursday with some sunshine and seasonably mild temperatures. Thursday will definitely be the pick of the week.

As we head into the end of the week and the weekend, things get unsettled again. A coastal storm will likely impact the region, but the models don’t completely agree yet on what that impact will be, or exactly when it will be. Friday and/or Saturday will likely feature a period of rain, possibly heavy, some gusty winds, and cool temperatures. How much rain, how much wind, and how cool it will be are details that we don’t have a good handle on yet. In fact, at least one model shows the potential for some wet snow to mix in, especially over the hills of central New England. While this wouldn’t be unheard of this late in the season, we’re not expecting it to occur, though we’re not completely ruling it out either. As for next Sunday, the coastal storm should be out of the picture, but another system may be approaching from the west, as our active pattern is expected to continue for quite some time.

Monday: Plenty of clouds with showers possible late in the day. High 54-61 along the coast, 61-68 inland.

Monday night: Cloudy with showers likely. Low 44-51.

Tuesday: Showers end in the morning, remaining mostly cloudy in the afternoon. High 55-62, potentially turning much cooler during the afternoon.

Tuesday night: Cloudy with showers redeveloping. Low 43-50.

Wednesday: Showers ending by midday, some sunny breaks are possible late in the day. High 58-65, cooler along the coast

Thursday: A mix of sun and clouds. High 58-65.

Friday: Cloudy with showers possible. High 53-60.

Saturday: Partly to mostly cloudy, chance for showers. High 55-62.

Sunday: Mostly cloudy with a chance of showers. High 57-64.

In our Weekend Outlook, we mentioned the potential for a significant warmup later this week. Well, that was a bit premature.

We start the week off with high pressure building in behind yesterday’s storm system. We’ll still have breezy conditions in the wake of the system, especially during the morning and early afternoon. With an upper-level low pressure area also moving across the Northeast, some clouds may pop up during the afternoon as well. As the upper low pulls away on Tuesday we’ll have some sunshine, less wind, and milder temperatures.

A warm front moves into the region late Tuesday night, with some showers and possibly a thunderstorm accompanying it. This sets up a very mild day on Wednesday, with much of the region getting well into the 70s, and some 80-degree readings possible well inland. The warmth won’t last long though, as a cold front will be approaching the region later in the day, producing another round of showers and possibly thunderstorms.

After that, things get a little complicated, as the models don’t agree on exactly how the pattern evolves. That cold front stalls out near or just south of the region Wednesday night. Another wave of low pressure rides along that front, bringing in another round of showers on Thursday. Will that wave lift the front back through as a warm front or not? That’s a critical question for the temperature forecast. The showers look like they will linger into Friday with mild temperatures before a stronger cold front moves through late in the day. Saturday looks to be drier and cooler with high pressure building in, but another upper-level low moves through, with more clouds and possibly a shower or two. Sunday looks milder as high pressure moves offshore and a southwesterly flow redevelops. However, another system could be approaching the region from the west. Whether the shower activity ahead of that system arrives late in the day Sunday or on Monday is a detail that can’t be resolved this far out.

Monday: Partly to mostly sunny and breezy. High 53-60.

Monday night: Partly cloudy. Low 34-41.

Tuesday: A mix of sun and clouds. High 63-70.

Tuesday night: Partly to mostly cloudy with a few showers possible, maybe even a rumble of thunder. Low 43-50.

Wednesday: Intervals of clouds and sunshine, showers and thunderstorms possible late in the day and into the evening. High 69-76, cooler along the coast.

Thursday: Plenty of clouds with showers likely. High 56-63.

Friday: Mostly cloudy and breezy with more showers. High 59-66.

Saturday: Partly sunny. High 56-63.

Sunday: A mix of sun and clouds, breezy, chance for a few late-day showers. High 57-64.