Overall, exceptional summer weather continues for New England even though the weather unquestionably becomes a bit more extreme in the days ahead.
We’re starting the week with comfortably low humidity and continuing warmth as highs rebound into the middle and upper 80s under plenty of sunshine. Over the Tennessee River Valley, the remnant moisture of once-Hurricane Barry slowly migrates northeast and will eventually impact the forecast for our region.
This will carry increasing humidity, some showers and thunder into the forecast for midweek. Until then, sea breezes don’t kick up for most beaches Monday, but are more likely Tuesday. Meanwhile, inland communities will reach 85 to 90 degrees by day, and most communities cool comfortably into the 60s Monday and Tuesday night.
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There’s no question that we’ll feel a surge in humidity on Wednesday as tropical air settles in. If highs climb into the lower 90s, we’ll see our heat index values – "feels like" temperatures – reaching the middle 90s.
Later Wednesday through Thursday, the chance for showers and thunderstorms will elevate significantly as leftover moisture from Barry enters from the west, encouraging any storms that develop to produce locally heavy downpours in the soupy air.
Just as that moisture departs on Friday, we’ll be opening the door to a more sustained bout with heat and humidity that’s been building over the Central United States. It's more likely to provide New England with our first heat wave of the season Friday through Sunday, and perhaps even into Monday.
Thunderstorms don’t look exceptionally likely this weekend, but it’ll be hazy, hot and humid with heat index values poised to rise near 100 degrees. Even as we cool a bit early next week, we’ll still find high temperatures in the 80s in our exclusive First Alert 10-Day Forecast.