While some of KOTA Territory was at work, others found ways to stay cool outdoors during the hot heat.
"I've been swimming, diving with my goggles and I've been going down the slides," said Paul Hight, a swimmer at Rapid City's Sioux Park pool.
"We originally wanted to go a little bit earlier, but we were delayed a little bit. We wanted to hit it before noon at least," said Jeff Owens, who ran at Canyon Lake this morning.
But as temps started out in the 70s and hit 90 before noon, the Sioux Park pool was one of the most popular places to cool off outdoors.
"You know it started out really slow but then as it progressed to about 1–ish it started getting busy with all the day cares coming. It's definitely been one of the busiest days as far as having so many people. So far so good," said Sioux Park lifeguard Hunter Stiles.
And if you weren't in the water, but outside, staying hydrated was also important.
"It's of the utmost importance. Before we left we were just drinking water, we were debating whether or not to carry the water packs or whatever but it's definitely warm out today," said Owens.
And that warm weather is a welcome sign for some.
"We're big fans of the hot weather. We're moving from Alaska down across the country to Virginia, so we're looking forward to some hot weather," said Melissa Owens.
But for others it's hard to beat the pool.
"Let's just say I'm going to stay here for awhile, " said Hight.