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Summertime weather through the weekend

Posted by David Epstein  June 22, 2013 09:25 AM

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Summer officially arrived just after 1 AM Friday along the east coast and this means that the sun has now reached its highest point in the sky for the year. The kids may still be in school, but the days lose a few seconds of daylight from now until just before Christmas.

I'll be updating the details of the forecast on Twitter at @growingwisdom Please follow me there. Feel free to comment or ask questions too.

The good news is that the speed that the light is lost is very slow and the sunset time will not change dramatically until later in July. The speed of light loss does increase quite quickly from July 7th to the 31st. On the 7th we lose about a minute of daylight, by the 31st, it's over 2 minutes less light each day.

The weekend forecast and into the middle of next week is looking quite nice with summer heat and humidity for 4 to 5 days before a change to cooler weather for the second part of next week.

Both of our major models are advertizing the period of heat followed by a change in the pattern heading into July 4th. Today will be a great day, but there will be some cloudiness at times. Let's call it partly cloudy with highs in the lower 80s. South facing beaches will be cooler remaining in the 70s. As far as humidity, it will be quite comfortable all day as the true steamy air remains south of New England. There is a small risk of a pop-up storm, mostly in Northern New England this afternoon.

Overnight will be mild with lows in the 60s, but still not too humid. Sunday the heat and humidity will increase and a few spots could nudge 90F over parts of interior Connecticut. Some fog will start the day over Cape Cod where highs will reach the 70s. If you are over interior parts of Cape Cod, 80F isn't out of the question.

Monday a frontal system will be near the area so there will be some clouds and a risk for a thunderstorm or just plain shower. The humidity will be quite high and it will be uncomfortable for some of us. Highs will reach the upper 80s to near 90F. Tuesday and Wednesday will see a continuation of this pattern with heat and humidity. The nights will be quite warm as well with Boston staying above 70F the entire night.

On Wednesday, late in the day, a front will cross the area and bring an end to this period of heat and high humidity. Check out the graph below which shows the temperature trend in Boston for the next two weeks. The numbers are probably not exact, but the trend is clear.
next 15 days.png

The further out in time the forecast is made, the less accurate it will be. In other words, that high temperature for July 4th can be off by many degrees. More on the holiday forecast in the coming days.

Gardening this week
How are the plantings looking that you have against the foundation of your dwelling? Are they overgrown, too small or crowded? Check out this video in which I show you one foundation planting from start to finish. I added several important tips throughout the video.

I'll be updating the details of the July 4th forecast on Twitter at @growingwisdom Please follow me there. Feel free to comment or ask questions too.

This blog is not written or edited by Boston.com or the Boston Globe.
The author is solely responsible for the content.

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About the author

David Epstein has been a professional meteorologist and horticulturalist for three decades. David spent 16 years at WCVB in Boston and currently freelances for WGME in Portland, ME. In 2006, More »
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