 OSHA says heat is the leading cause of weather-related deaths in the U.S. The new rule would apply to about 36 million workers in indoor and outdoor work settings. And in a look at the weather for tonight across Maine, we'll have mostly clear skies with lows in the 60s statewide. We'll have another hot day tomorrow. Temperatures will range from the low 80s to the mid 90s. You're listening to Maine Public Radio. It's five minutes after five o'clock.