OMAHA — Although a cold front and rain brought much of Nebraska relief Tuesday after an extremely hot weekend, effects from the heat are still being assessed.

Temperatures that broke the 100-degree mark over the weekend took a lethal toll on some cattle in northeast Nebraska.

Roxanne Bergman, president of the Northeast Nebraska Rendering and Bergman Inc., in Clearwater, said that her business has collected about 1,250 head of dead cattle that were killed by the weekend heat.

"And we're still picking up. It just did a terrible job," Bergman said. "I thought today it would slow down and we could catch our breath, but we've had a lot of calls."

It was not known Tuesday what the total statewide economic impact of the heat would be, but Bergman said the losses to cattle producers in her area would be in the millions of dollars.

One producer lost 200 head cattle, she said.

The high temperature in Norfolk was 101 on Saturday and 97 on Sunday, the National Weather Service reported.

No human deaths because of heat have been confirmed in Nebraska although University of Nebraska Medical Center officials believe the death of an infant in Omaha on Saturday was related to the weather.

While the heat proved to be deadly to cattle, it also hurt businesses that rely on people coming outdoors.

Joe Naatz, pro shop assistant manager at Omaha's Eagle Run Golf Course, said that about 250 people teed up at the course on Saturday, which was about 100 fewer than normal for the first day of the weekend.

Attendance was down over the weekend at Omaha's Henry Doorly Zoo.

About 8,000 people came to the zoo on Saturday, about 2,000 less than would normally attend, zoo director Dr. Lee Simmons said.

About 3,700 people went to the zoo on Sunday. Between 6,000 and 7,000 people come to the zoo on a normal Sunday, Simmons said.

Those who did come to the zoo kept hydrated and cool in the 100-plus degree temperatures (105 degrees in Omaha on Saturday and 102 on Sunday), he said.

"We've got sprinklers for the animals and the people and both of them are using them," Simmons said.

Only one person was treated for heat-related health issues at the zoo over the weekend and those problems were cleared up with some rest and water, Simmons said.

Fishing was down but water sports were up at Lake McConaughy, said Mitch Gerstenkorn, park superintendent of Lake McConaughy and Lake Ogallala Recreation Areas.

Weekend attendance at the state's largest lake seemed about average in spite of hot weather, Gerstenkorn said.

"I'm sure we lost a few but we gained a few, too," Gerstenkorn said.

The heat hurt attendance at Lincoln's annual July Jamm festival, which was held downtown Friday and Saturday.

Deb Johnson, executive director of Lincoln's Updowntowners Inc., the nonprofit group that runs the festival, said daytime concerts were particularly hurt by the weather.

Official attendance numbers have not been tallied, but Johnson said the crowds did grow for the evening concerts.

"Last year we had the coldest weekend of the summer, this year it was the hottest," Johnson said. "It hurt our vendors."

Business owners were hopeful things would pick up with cooler temperatures expected this week following the arrival of Monday and Tuesday's cold front.