Weather July 26, 2020 5:26 pm Forecast: Extreme Heat Monday, Tuesday Sunday night: Partly cloudy. Patchy dense fog. Lows in the 70s. Monday: Mostly sunny. Record breaking heat. Highs in the mid to upper 90s, heat index values up to 109. US & World Videos 3:30 Warm and sunny day in New England, with temps in the 70s 2:44 Tuesday is the last dry and hot day this week 2:29 Storm headed to Boston: What to know about the severe weather threat 3:25 Changes coming to New England's weather… 3:19 Partly cloudy, high temps reach near 70