Summer is just around the corner and so is hot weather — forecasters are calling for temperatures in the 90s and heat indices as high as 100 degrees this weekend.
As the days heat up, don't expect much reprieve at night. Summer evenings are getting warmer in Indiana and elsewhere amid climate change, a new analysis shows.
Why it matters: Higher overnight temperatures can have health consequences for vulnerable groups, as well as increase demand for air conditioning.
That, in turn, can strain electrical grids and increase energy demand, fueling a vicious cycle with more greenhouse gas emissions.
Driving the news: Average summer nighttime temperatures increased between 1970-2024 in 96% of 241 locations analyzed in a new report from Climate Central, a research and communications group.
Among cities with an increase, temperatures rose by 3.1°F on average.
In Indianapolis, temperatures increased by 3.2°F on average.
Between the lines: Hundreds of U.S. cities are experiencing more frequent warmer-than-average summer nights "with a strong climate change fingerprint," Climate Central says.
The bottom line: It isn't just daytime highs getting warmer in much of the U.S., but evening lows, too.