Extreme heat, first potential heat wave of 2025 in the forecast; Eversource is ready to respond if needed
Jun 20, 2025
With the potential for the first heat wave of the year in the forecast, bringing temperatures well into the 90s and high humidity later this weekend and into next week, air conditioners and fans will be working overtime at many homes and businesses. During the summer months, Eversource customers in New Hampshire use about 20% more electricity to keep cool when the mercury soars, and that increase can be even greater when the state experiences multiple heat waves like it did last year.