With a high of 97 degrees Tuesday, and a morning low of only 69, it's hard to believe we could see temps in the high 110s in less than a week.

But if the forecast holds, that's exactly what's going to happen in the Valley and other parts of southern Arizona.

An excessive heat watch has already been issued for more than five million Arizona residents for Friday through Monday. That watch includes all of Maricopa County and most of the southern half of the state.

MORE: 12news.com/heat

Meteorologist Krystle Henderson said she expected the watch to be upgraded to a warning closer to the weekend.

RELATED: Criteria for excessive heat warnings different in Arizona

Some of the forecasted highs during that time could threaten records, The forecast for Father's Day is 114 and the record for the day is 115, set back in 2015.

The National Weather Service reminded everyone on Monday that there are hydration stations and refuges set up around the Valley. These locations are open to anyone.

MAP: Find water or a refuge near you

Heat is the number one weather-related killer in Arizona.

Keep yourself and others safe by limiting your time outside, drinking plenty of water, doing outdoor early in the morning or late in the day, and make sure to wear sunscreen and light clothing.

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