A dangerous heat wave continues to scorch a large part of the United States, with more than 130 million people under extreme heat watches and warnings from South Dakota to Florida as temperatures in some cities are expected to exceed 100 degrees and heat indexes — or “feels like” temperatures — could soar past 115°F.

With this week's heat wave likely leaving conditions feeling like it is more than 100 degrees on Tuesday, Massachusetts could see another big change to the forecast before the week ends.

A dangerous heat wave is set to grip Staten Island beginning Monday morning, with the National Weather Service issuing a heat advisory for Richmond County through Wednesday evening. Temperatures are expected to soar into the mid-90s,