Boston is heading into a warm, mostly sunny Monday with a high near 89°F and thick, muggy air moving back in — get your outdoor plans done early, because the National Weather Service says a chance of evening thunderstorms is on the table.
Today’s Setup
After a brief break from the stickiness this morning, dewpoints climb back into the upper 60s to low 70s once the sun’s up, according to the Area Forecast Discussion from NWS Boston/Norton. It’s actually a touch cooler than the 90-plus days we’ve had lately — today tops out near 89°F under mostly sunny skies, with a light south wind around 1 to 8 mph.
Best Window To Be Outside
Morning through early afternoon is your sweet spot before the humidity and storm chances build. Get a walk along the Charles River Esplanade or a loop around Boston Common in early, and if you’re chasing a round of golf, the fairways at Franklin Park will be prime before lunch — conditions today are about as good as it gets, with barely a breeze and full sun.
Evening Storm Chance
Forecasters are watching a passing cold pool and warm front interact this afternoon into tonight, generating CAPE values of 750 to 1,250 J/kg — enough fuel for scattered showers and thunderstorms. Confidence on exact timing and placement is low since model guidance disagrees on where storms set up, but forecasters currently favor late afternoon into tonight, with the overnight outlook showing a 28% chance of showers between 10 and 11 PM ET. Have an indoor backup for evening plans just in case. Tuesday clears back out, sunny with a high near 87°F.
What To Wear And Bring
Light, breathable clothing and water are musts with dewpoints this high. If you’re going to be outside for a while, a portable misting fan is a smart way to cool off on the porch or patio. Anglers and anyone spending the day in the sun should also check out the UPF 50+ Sun Hoodie deal — solid sun coverage for not much money.
Around Town This Week
Olivia Dean brings her Art Of Loving tour to TD Garden tonight, Aug 10 — muggy but dry for arrival, with that isolated storm chance lingering into the evening commute. Read our full concert coverage and grab tickets on SeatGeek, plus an Olivia Dean t-shirt to wear to the show. Looking ahead, the Patriots host the Colts in preseason action at Gillette Stadium on Aug 13, and Chris Stapleton’s All-American Road Show rolls into Fenway Park on Aug 14 — find tickets on StubHub for that one, and stock up on official team gear on Fanatics for gameday.
Tonight’s Dinner
With highs near 89°F, tonight’s a great excuse to fire up the grill instead of heating up the kitchen — burgers, steaks, or grilled chicken with corn on the cob all cook up quickly outside. An instant-read meat thermometer takes the guesswork out of doneness, and a grill brush and scraper set keeps the grates ready to go. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Humidity sticks around through Tuesday, but the NWS says both temperatures and dewpoints trend lower as the week goes on. Another round of showers and storms is possible Wednesday night into Thursday morning, then real relief arrives by Friday — forecasters expect highs near 80°F for the weekend with dewpoints dropping into the 50s, finally comfortable air across southern New England.
