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Boston just declared a heat emergency through Wednesday—here’s what you need to know

Beantown's latest heat alert brings triple-digit heat indexes, air quality warnings and a citywide push to keep residents cool

Laura Ratliff
Written by
Laura Ratliff
Boston, MA
Shutterstock | Boston, MA
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Break out the popsicles and your loosest linen—Boston is officially in “too hot to function” mode. Mayor Michelle Wu has declared a heat emergency from Monday, August 10 through Wednesday, August 12 marking the city’s third of the summer, with temperatures expected to hover in the mid-to-high 90s. Factor in the humidity, and it’ll feel even toastier.

RECOMMENDED: Fun ways to stay cool in Boston during the heatwave

If you’re wondering why this keeps happening, here’s the deal: Boston triggers a heat emergency when the “feels like” temperature hits 95 degrees or higher for at least two straight days. This week’s forecast checks that box, and then some. According to the National Weather Service, we’re in for sweltering afternoons, steamy evenings and a heat index of about 96 degrees midweek. Much of eastern and central Massachusetts is also under an air quality advisory through Monday night thanks to high ozone levels, which is bad news for kids, older adults and anyone with heart or lung conditions.

The good news is that the city is rolling out the full “cool down” arsenal. All 36 Boston Centers for Youth & Families locations are doubling as cooling centers, offering air-conditioned reprieve during normal hours. Public libraries are also open, not just for the AC, but for summer programming that’ll keep you entertained while you wait out the worst of it. And yes, the city’s pools and splash pads are ready for action, from the Frog Pond in Boston Common to neighborhood spray decks. Officials recommend limiting outdoor activities to mornings and evenings, drinking plenty of water, and checking in on elderly neighbors (heat waves can be dangerous even for healthy folks).

Adrian Jordan, the city’s chief of emergency preparedness, puts it simply: “Stay well-hydrated, seek out air-conditioned environments when possible, and check in on elderly family members or neighbors who may need assistance.” Also worth repeating: Don’t leave kids or pets in cars. Even a “quick” errand can turn deadly in minutes.

Boston EMS told the Boston Globe that 911 calls typically spike 10 to 15 percent during heat waves, so it’s worth taking the warnings seriously. If you must be outside, wear loose-fitting clothing, slather on sunscreen and take frequent breaks.

Relief is on the horizon: By Thursday, highs should dip back into the 80s. Until then, think cool thoughts, lean into the iced coffee economy, and remember—your couch, a fan and a Netflix queue count as self-care right now.

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