Sunday June 30, 2013 | 09:00 PM
Posted by David Epstein

While we have had some nice weather since early May, we haven’t had many.   This weekend ended up being relatively nice, but not rain free.  Showers and storms crossed the area at different times Saturday and Sunday with most of us staying dry nearly all of the time.
This evening some big storms moved through the lakes region after what was a very nice day.

You might have noticed humidity levels have increased Sunday as a flow of moist air moves up the coastline and brings back high levels of moisture to the region.   This train of rain will create numerous showers and thunderstorms through New England Monday and Tuesday.

For the start of the work week the axis of the moisture appears to be poised to set up over western New England and then run northeast through the lakes region of Maine.  This area runs the greatest risk for heavy rain the next two days, but even there it won’t rain the entire time.  Even at the coast storms will fire up later Monday and early Tuesday.

Humidity levels are going to run above Maine averages through the weekend.   What I mean by this is our nights will be muggy and warm and our days will be warm to hot and quite humid.  Dew points, a measure of the moisture in the air will stay in the tropical range so air conditioning will be needed.

I don’t see any break in the humidity for 10 days.  The break will happen; I just can’t with any level of confidence tell you when it will arrive.  I haven’t seen this long of a stretch of humidity so early in the summer in many years.  It’s not good for plants and certainly not the kind of weather I personally like.

As that river of moisture continues to move westward Monday and Tuesday we will begin to drop the chance of rain from the forecast.  What will happen is that high pressure in the Atlantic will push the unsettled weather west of the region at the same time the area begins to fall apart.  This means that by the 4th, we should be able to completely remove thunderstorms from the forecast.  While you might still see “chance of an isolated storm” from media outlets, that chance will be remote.

As the atmosphere becomes more stable, it will not cool off.   Temperatures are going to be in the 80s and even some lower 90s heading into the weekend.   Inland areas may have another heat wave on their hands if the high temperatures reach and exceed 90F for three or more days in a row.

The coast of Maine will be the coolest places to be the next week as local sea breezes keeps temperatures in the 70s and lower 80s especially at those beaches where a south southwesterly breeze pulls cooler ocean air slightly inland. 

Sunshine will be limited the next two days, but increase thereafter.  Even Monday and Tuesday will have some sunshine mixed through the clouds.  It may rain very hard for a few minutes only to feel like a steam bath a few minutes later. 

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.

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About the Author

David Epstein has been a meteorologist for more than 25 years. He spent 16 years in Boston and currently freelances at WGME13 in Portland.

In 2006, David founded GrowingWisdom.com, a business producing educational and marketing videos for the green industry. He currently is a professor at Framingham State College, teaches Jan Plan at Colby College and owns Bloomscapes Inc., a landscape design business.

David authored "Gardens Of New England" and his work has been published in Grolier's Science Annual for 10 years. He lives in South Natick, Mass., and has a summer home in Harpswell.

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