A heat wave is expected to impact millions of people this week. More than half of the U.S., including much of the southeast, is under some form of heat alert on Monday. Atlanta is also under a heat advisory, according to the National Weather Service.

National Weather Service warns residents to take precautions as temperatures soar into mid-90s through Wednesday, with relief coming Friday as Musikfest gets rolling.

The National Weather Service said parts of Michigan could feel like 105 degrees on Monday, July 28. Thunderstorms possible in some areas.

The National Weather Service is reporting a “sunny and hot” Monday with a high near 99 degrees. The rest of the week will continue with highs in the 80s and 90s but with possible thunderstorms and rain each day.

New Jersey under heat advisory; How long will it last? Here's the latest NWS weather forecast for Monmouth and Ocean counties.

A heat advisory will be in effect for parts of the area this week as heat indices reach 100 degrees in parts of Delaware. See the weather forecast.

Boston faces rain and a thunderstorm Sunday, a 70% chance of precipitation, and an upcoming heatwave with highs near 80 degrees.

The hot and muggy weather will continue into Tuesday and Wednesday. This time around, the majority of the Mid-Ohio Valley will see the heat index up to around the 100 degree mark. This will be the final stretch of muggy weather across the region as we start to welcome drier and cooler air back into the forecast towards the end of the week.

Some National Weather Service offices in California are among those hit hardest by meteorologist vacancies, heightening concerns as the state contends with the threat of extreme weather.

The National Weather Service issued a report at 4:46 a.m. on Monday for dense fog until 8:30 a.m. for Northern Erie and Southern Erie as well as Crawford County.