Here’s how hot it got Sunday across Massachusetts

South Boston-05/17/2017-  Bicyclists ride along the sidewalk next to the Marine Park Beach as two men enjoy the beach under umbrellas. City beaches will open Thursday just in time for a scroching spring day predicted to be in the 90's. JohnTlumacki/ The BostonGlobe (metro)
Bicyclists ride along the sidewalk next to the Marine Park Beach as two men enjoy the beach under umbrellas. –John Tlumacki/Globe staff

After a whole lot of mild weather, it’s finally beginning to feel like summer in New England — particularly so Sunday afternoon.

Depending on the location, temperatures across Massachusetts reached into the low 90s, according to the National Weather Service’s afternoon observations.

Temperatures across southern New England as of 3 p.m. Sunday. —National Weather Service via Twitter

The 90-degree temperatures even extended into some parts of northern New England (with the distinct exception being the summit of Mount Washington).

According to the service’s Sunday morning forecast, inland Eastern Massachusetts was set to get the worst of the heat, with projected highs of 96 degrees in Bedford, 95 degrees in Lawrence, and 93 degrees in Taunton, respectively.

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The afternoon high in Boston was forecasted to be 91 degrees. Just before 2 p.m. Sunday, observed temperatures at Logan International Airport hadn’t quite reached that mark, but were expected to rise as the clouds moved out to sea.

By 4 p.m., the high in Boston had indeed hit 91 degrees, the service said.

The heat wave is expected to continue through Tuesday, with near-record highs.

The Massachusetts Department of Environment Protection issued an air quality alert for the eastern part of the state Sunday for potentially unhealthy ground-level ozone concentrations. According to the Environmental Protection Agency, sensitive groups (such as people with lung disease, older adults, children, and people who are active outdoors) may be affected by the orange-rated air quality levels. The agency recommends reducing intense outdoor activities. The alert is in effect until 10 p.m. Sunday, with another possible Monday.

NWS meteorologist Benjamin Sipprell said such air quality alerts, which are issued by the states, are common when temperatures reach into the 80s and 90s with low winds.