Here’s David Epstein’s weekend weather forecast

This weekend's forecast includes a beach day and the risk of showers.

The start of Pan-Mass Challenge in 2016.
The start of Pan-Mass Challenge in 2016. –Kieran Kesner / The Boston Globe

The weather this weekend is mixed, except for one thing: Humidity continues unabated throughout the whole thing. There may be a small difference between Saturday and Sunday in terms of the actual moisture in the air, though. 

Keep an eye out for showers late Friday and early Saturday. If you’re planning on going to the beach, Sunday looks like the day.

Here’s your complete weekend weather forecast:

Friday is humid.

The high temperatures on Friday.
The high temperatures on Friday. —David Epstein

Friday will feature sunshine with building clouds and perhaps a shower very late in the day over western areas. The best part of the day will be the morning and early afternoon.

Look out for showers on Saturday.

The high temperatures on Saturday.
The high temperatures on Saturday. —David Epstein
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The worst weather looks like it’ll happen Saturday, especially during the first part of the day when an area of showers and possibly thunderstorms crosses through the region. High pressure continues to pump hot, humid air into New England. In spite of this, a weather system will move eastward, bringing clouds and a chance of showers. 

You’ve likely noticed that most of the rainfall has not made it very far east this week, but I think most of us will see at least some rain Saturday morning. The weather will start to improve later in the day.

rainfall through saturday
Most rainfall will occur west of New England through Saturday, but some showers will fall around Boston. —NOAA

Sunday is a beach day.

High temperatures on Sunday.
The high temperatures on Sunday. —David Epstein

Sunday brings hot temperatures and abundant sunshine. There’s no chance of rain.

Tides are high at sunrise Sunday morning and again couple of hours before sunset. This puts low tide right around noon. At the beaches, I expect a lot of sun and temperatures well into the 80s. Some inland areas will be near or above 90 by a degree or two.

The heat and humidity will continue for at least the first few days of next week; it may last into next weekend, depending on how the jet stream unfolds. I do see some possible changes in the pattern during the middle of August.