GRAY — The heat wave is continuing across Maine with temperatures reaching 90 degrees for a fourth straight day.

By mid-afternoon today, the National Weather Service said temperatures had reached 95 degrees in Bangor, 91 degrees in Portland and 91 degrees in Caribou.

The weather service says the last time Portland had four days in a row of 90-plus temperatures was in 1993, while Caribou hasn’t had a four-day stretch since 1963. Bangor went four days in 2002 with temperatures of 90 or higher.