TOPEKA, Kan. (AP) — Kansas health officials warned residents Tuesday to stay hydrated and limit their exposure to the heat as temperatures hit 100 degrees or higher during the next several days.

Three people have died from heat-related illnesses already this year, and more than 240 have become ill, according to the Kansas Department of Health and Environment.

Along with extreme heat, the forecast calls for recent modest winds to dissipate by week's end, increasing concerns about air quality.

Doug Watson, meteorologist for KDHE's air quality department, said cloud cover and winds limit the production of ozone, which can be dangerous for residents with asthma and other respiratory conditions.

"Mostly the folks with pre-existing conditions it affects the most," he said. "But at higher levels, it can even affect healthy people."

In northwest Kansas, residents seeking relief from 100-degree heat flocked to the Colby Aquatic Park. Manager Jill Nech said daily attendance has been more than 400 people, with a few days of more than 700 seeking a cool respite.

"Most of the time we're busy from 2 p.m. to 5 p.m.," Nech said. "Most people are staying about two to four hours. We're selling lots of water and ice cream."

The park has two slides and a lazy river, and Nech said many people are just coming out to float around to cool off. Temperatures were back in the 100s on Tuesday and were as high as 110 at the end of June.

"We've got to keep an eye on kids who are in the water quite a bit and to make sure that our guards get breaks, too, every 30 to 45 minutes," she said.

Tom Langer, KDHE's director of the bureau of environmental health, said the danger in extended periods of high heat is that residents let their guard down and become vulnerable to heat injuries. He said people should be drinking enough fluids well in advance of planned outdoor activities, especially sports fans who expect to be watching a ball game for several hours at a time.

"You have to be vigilant," Langer said. "We aren't trying to be alarmists, but the heat can affect people more than they realize."

Residents also can help each other out by checking on elderly neighbors to see that they are staying cool or get them to a shelter for relief, he said.

Officials also encouraged residents to dress properly for the weather and to make sure they have water and a charged phone should their vehicles become disabled in the heat.

Gov. Sam Brownback planned to tour more of the state Wednesday to see the effects of the drought on agriculture. The U.S. Department of Agriculture has declared 82 counties in Kansas federal disaster areas because of the ongoing dry conditions.

Brownback was visiting central and southeastern Kansas this week and plans to tour northwestern counties next week.

Loading Slideshow...
  • Brian Frendsen

    Brian Frandsen pours water over his head in an effort to cool off while building a cement block wall on Saturday, July 7, 2012 in Huntsville, Ala. (AP Photo/The Huntsville Times, Dave Dieter)

  • A dock extends into a dry cove at Morse Reservoir in Noblesville, Ind., Thursday, July 5, 2012. The reservoir is down 3.5 feet from normal levels. Oppressive heat is slamming the middle of the country with record temperatures that aren

  • Monique Miller

    U.S. Postal Service letter carrier Monique Miller drinks from a bottle of water as she delivers mail in the Feltonville section of Philadelphia on Saturday July 7, 2012. Temperatures of more than 100 degrees were forecast in Philadelphia and excessive heat warnings were issued for several states in the Midwest as a heat wave continued. (AP Photo/Joseph Kaczmarek)

  • A cow looks for something to eat as it grazes in a dry pasture southwest of Hays, Kansas in a July 6, 2012 photo. A new report shows the drought gripping the United States is the widest since 1956. The monthly State of the Climate drought report released Monday, July 16, 2012 by the National Climactic Data Center says 55 percent of the continental U.S. is in a moderate to extreme drought. That's the most since December 1956, when 58 percent of the country was covered by drought. (AP Photo/The Hays Daily News, Steven Hausler)

  • Steve Niedbalski shows his drought and heat stricken corn while chopping it down for feed Wednesday, July 11, 2012 in Nashville Ill. Farmers in parts of the Midwest are dealing with the worst drought in nearly 25 years. (AP Photo/Seth Perlman)

  • A marshal is treated for heat exhaustion on the 18th green during the first round of the U.S. Women's Open golf tournament, Thursday, July 5, 2012, in Kohler, Wis. Oppressive heat is slamming the middle of the country with record temperatures that aren

  • The gate is closed on a boat ramp leading to a dry cove at Morse Reservoir in Noblesville, Ind., Monday, July 16, 2012. The reservoir is down nearly 6 feet from normal levels and being lowered 1 foot every five days to provide water for Indianapolis. (AP Photo/Michael Conroy)

  • A sun bear reacts to triple-digit temperatures at the Henry Doorly Zoo in Omaha, Neb., Friday, July 6, 2012. The temperature reached 103 degrees Fahrenheit (39.5 Celsius) Friday. (AP Photo/Nati Harnik)

  • Perspiration collects on construction worker David Macmullen's face in the afternoon heat, Friday, July 6, 2012, in Philadelphia.

  • A sheep stands in front of a large fan in its pen at the All-American Junior Sheep Show at the Iowa state fairgrounds, Thursday, July 5, 2012, in Des Moines, Iowa. Oppressive heat is slamming the middle of the country with record temperatures that aren

  • Concrete worker Lenny Rose pours water over his head in an effort to cool off from the extreme high temperatures while building a commercial industrial park during a record breaking heat wave that is over most of the country, Thursday, July 5, 2012 in Springfield, Ill. (AP Photo/Seth Perlman)

  • Wyatt Young, 5, cools off in a fountain set up outside Busch Stadium before a baseball game between the St. Louis Cardinals and the Miami Marlins Friday, July 6, 2012, in St. Louis. (AP Photo/Jeff Roberson)

  • Boats sit in the bottom mud at the dock in the west cove at Morse Reservoir in Noblesville, Ind., Thursday, July 5, 2012. The reservoir is down 3.5 feet from normal levels. Oppressive heat is slamming the middle of the country with record temperatures that aren

  • Nia McCall, 8, plays on the "Sprayground" at Keeley Park in McLeansville, N.C. on Friday, June 29, 2012. A record-breaking heat wave swept across the southeast starting Friday and is expected to last through Sunday. (AP Photo/Burlington Times-News, Scott Muthersbaugh)

  • DROUGHT

    Farmer Joe Fischer holds ears of corn showing the variety of kernal development Thursday, July 12, 2012, at Fischer Farms Inc. in Owensboro, Ky. Normally the silks would already be brown, Fischer said. "There is no pollen left because the silks were delayed. . . because it has been too hot and dry," Fischer said. All five Owensboro-area counties have been designated primary disaster areas because of drought. (AP Photo/The Messenger-Inquirer, John Dunham)

  • The sun rises Sunday, July 15, 2012, in Pleasant Plains, Ill. Corn stalks are struggling in the heat and continuing drought that has overcome most of the country. All of Illinois is officially in a drought, and Illinois Gov. Pat Quinn plans a trip to southern Illinois to discuss the state's plans for responding to dry conditions. (AP Photo/Seth Perlman)

  • Arlington County residents pass the time in the Central Public Library after it was made an official cooling station in Arlington, Va., Saturday, June 30, 2012. Bob McDonnell declared a state of emergency Saturday after a powerful storm killed at least six people in the state and knocked out power for hundreds of thousands, leaving them without air-conditioning in the middle of a blistering heat wave.(AP Photo/Cliff Owen)

  • Lee Shinn wears one of the umbrella shade hats he sells to beat the heat at the corner of Jackson and Springdale in Memphis, Tenn., Friday, July 6, 2012. With temperatures again reaching the 100 degree mark, Shinns shady solution is a steal at three dollars a piece. (AP Photo/The Commercial Appeal, Brandon Dill)

  • Tanya Winters cools off in a fountain at Butler Park in Austin, Texas, on Tuesday June 26, 2012. Tuesday's high temperature of 109 was the highest ever recorded in June in Austin. (AP Photo/Austin American-Statesman, Jay Janner)

  • A the thermometer on the sign at Cincinnati Federal Savings and Loan on Glenway Avenue at Sunset Avenue on the East and West Price Hill line reads 101 degrees, in Cincinnati, Thursday June 28, 2012. Nate Mackey holds a towel and a cup of water as he crosses Sunset Avenue. (AP Photo/The Enquirer, Glenn Hartong)

  • In this Monday, July 2, 2012, photo, visitors to the Smoky Mountains float on the Little River in Townsend, Tenn. The National Weather Service has crunched some end-of-June numbers that give dimension to the heat wave. In Nashville, June continued the trend of above-normal temperatures for an eighth consecutive month. June went into the records averaging 1.3 degrees above normal, but most people will dwell on the last days of the month that set an all-time heat record for Nashville at 109 degrees on Friday. (AP Photo/The Knoxville News Sentinel, Michael Patrick)

  • John Rohlfing

    John Rohlfing, 38, wipes off his face as he works on his the construction of his new home Thursday, July 5, 2012, in North Aurora, Ill. He started at 6:00 a.m. and quit at 11:00 a.m. because of triple digit temperatures and the safety in those conditions. Oppressive heat is slamming the middle of the country with record temperatures that aren

  • In this July 11, 2012 photo, Steve Niedbalski chops down his drought and heat stricken corn for feed in Nashville, Ill. All of Illinois is officially in a drought, and Gov. Pat Quinn plans a trip to southern Illinois to discuss the state's plans for responding to dry conditions. (AP Photo/Seth Perlman)

  • Julie Rhoades, James Rhoades

    Julie and James Rhoades, of Brazoria, Texas, sit in the shade of their umbrella to avoid the hot sun as they watch a World Cup of Softball game in Oklahoma City, Friday, June 29, 2012. (AP Photo/Sue Ogrocki)

  • Aletta, a rough-legged hawk, flaps her wings as she gets a cooling shower from a hose at the Carolina Raptor Center in Charlotte, N.C., Friday, June 29, 2012. Temperatures were expected to exceed 100 degrees in the Charlotte area for the next several days. (AP Photo/Chuck Burton)

  • Children cool off from the intense heat at a waterfront park on Friday, June 29, 2012, in downtown Louisville, Ky. The city endured a second straight day of triple-digit temperatures as a heat wave settled in across Kentucky. (AP Photo/Bruce Schreiner)

  • Gail Ballinger gives a fan to Virginia Elliott and Lisa Elliott Wednesday at the Salvation Army Social Services office in Chattanooga, Tenn., Wednesday, June 27, 2012. Temperatures are expected to reach record levels by the weekend. (AP Photo/Chattanooga Times Free Press, Tim Barber)

  • Delores Smith loads a donated fan for her mother outside the Salvation Army Social Services building in Chattanooga, Tenn., Wednesday, June 27, 2012. Temperatures are expected to reach record levels by the weekend. (AP Photo/Chattanooga Times Free Press, Tim Barber)

  • A customer holds a blue bubblegum strawberry combo from Delta Snow, a shaved ice walkup business owned by 17-year-old James David Ingram, of Yazoo City, Miss., Wednesday, June 27, 2012. Ingram, who had applied for various jobs with no results, decided to start his own business and hopes the current heat wave will bring his new business a steady stream of customers. (AP Photo/Rogelio V. Solis)

  • Ruby Ellis, Margaret Gainey

    Ruby Ellis, 13, receives a shaved ice cup handed from Delta Snow co-owner Margaret Gainey, Wednesday, June 27, 2012, in Yazoo City, Miss. Gainey and her grandson James David Ingram, 17, own the small business and appreciate the fact their trailer has air conditioning for the hot summer ahead. They hope the current heat wave brings their new business a steady stream of hot customers. (AP Photo/Rogelio V. Solis)

  • The sun rises above the horizon Wednesday morning, June 27, 2012 in Decatur, Ala. as roofer Mike Murphy cuts out blisters in the roof of Decatur High School. Much of Alabama is gripped in an early summer heat wave that has already sent the temperature over 100 degrees in some Alabama cities. To cope with the extreme heat, Murphy's work day starts at 5 a.m. and ends at 1:30 p.m. (AP Photo/The Decatur Daily, John Godbey)

  • In this photo provided by Coby Baalman, cattle drink from a tank being filled with hauled water because the windmill and underground pump can't keep up with the volume being consumed at the Baalman ranch Wednesday, June 27, 2012, in Menlo, Kan. Across the country, more than 900 heat records have been broken in the past week. If the forecasts hold, an intense heat wave gripping the center and western portion of the country could mean more will fall. (AP Photo/Courtesy Coby Baalman)

  • In this photo provided by Coby Baalman, ranch hand Terry Moss walks through a parched corn field Wednesday, June 27, 2012, in wheat stubble that hasn't grown much in the dry heat in Menlo, Kan. Across the country, more than 900 heat records have been broken in the past week. If the forecasts hold, an intense heat wave gripping the center and western portion of the country could mean more will fall. (AP Photo/Courtesy Coby Baalman)

  • In this photo provided by Charlie Wilson, a herd of Red Angus cattle stay close to a watering hole at the Wilson ranch Wednesday, June 27, 2012, near Lakeside, Neb. Across the country, more than 900 heat records have been broken in the past week. If the forecasts hold, an intense heat wave gripping the center and western portion of the country could mean more will fall. (AP Photo/Courtesy Charlie Wilson)

  • In this photo provided by Charlie Wilson, a herd of Red Angus cattle stay close to a watering hole and the windmill at the Wilson ranch Wednesday, June 27, 2012, near Lakeside, Neb. Across the country, more than 900 heat records have been broken in the past week. If the forecasts hold, an intense heat wave gripping the center and western portion of the country could mean more will fall. (AP Photo/Courtesy Charlie Wilson)

  • Corey Tipton, 9, Andrew Koestler, 11, Alexandria Tipton, 5, Anna Koestler, 9, and Zachary Tipton, 7, lie in the shallows of the Riverwalk at the Mud Island River Park in Memphis, Tenn. Tuesday, June 26, 2012. (AP Photo/The Commercial Appeal, Jim Weber)

  • Robert Mitchell

    Robert Mitchell, a brick mason with Professional Masonry from Birmingham, Ala., cools off with some cold water while working at the Belk Hudson Lofts construction site in downtown Huntsville, Ala., Sunday, July 1, 2012. Huntsville, Florence and other parts of northwest Alabama are under an excessive heat warning with forecasters show high temperatures breaking 100 degrees across the state. (AP Photo/The Huntsville Times,Glenn Baeske)

  • Justin Pegram, 4, plays on the "Sprayground" at Keeley Park in McLeansville, N.C. on Friday, June 29, 2012. A record-breaking heat wave swept across the southeast starting Friday and is expected to last through Sunday. (AP Photo/Burlington Times-News, Scott Muthersbaugh)

  • Anne Blaauwgeers

    Netherlands' Anne Blaauwgeers, right, wears a towel on her head to ward off the hot sun as she cheers from the dugout during the fourth inning of a World Cup of Softball game against Puerto Rico in Oklahoma City, Friday, June 29, 2012. (AP Photo/Sue Ogrocki)

  • Tourist and criminologist Luisa Sanchez picks through rocks at the foot of the East River in Brooklyn Bridge Park during a days-long heat wave of above 90 degrees in New York, Thursday, July 5, 2012. (AP Photo/Kathy Willens)

  • Sophie

    Sophie, 3, from Connecticut, frolics with a water sprinkler set up at the National Mall near the Lincoln Memorial, rear, in Washington Saturday, July 7, 2012. The heat gripping much of the country is set to peak Saturday in many places, including some Northeast cities, where temperatures close to or surpassing 100 degrees are expected. (AP Photo/Manuel Balce Ceneta)

  • Summer Santa Claus Tom Osborn of Taylor, Pa. a member of the Greater Scranton Jaycees, cools his feet in a pool of ice at Lackawanna County Courthouse Square during First Night festivities held in downtown Scranton, Pennsylvania on Friday, July 6, 2012. (AP Photo/The Scranton Times-Tribune, Butch Comegys)

  • Avery Gass, 4, slips her way through streams of cooling water, Friday, July 6, 2012, at the Thorton Murphy Park splash pad in Spokane, Wash. (AP Photo/The Spokesman-Review, Dan Pelle)

  • Steve Milewski uses a net to remove dead Northern Pike in Dean Lake in Plainfield Township near Grand Rapids, Mich. on Monday, July 9, 2012. The recent heat wave is blamed for raising the lake water temperature higher than the fish can tolerate. (AP Photo/The Grand Rapids Press, Chris Clark)

  • Kevin Sanabria

    Kevin Sanabria, 10, plays in a small waterfall in Trenton, N.J., Saturday, July, 7, 2012. People were coping as temperatures in the region climbed into the high 90s. (AP Photo/Mel Evans)

  • Gabriel Salas

    Philadelphia firefighter Gabriel Salas, Engine 72, drinks a bottle of water after extinguishing a fire in an auto detailing shop in the Oxford Circle section of Philadelphia on Saturday, July 7, 2012. Temperatures of over 100 degrees Fahrenheit were forecast in Philadelphia and excessive heat warnings were issued for several states in the Midwest as a heat wave continued. (AP Photo/Joseph Kaczmarek)

  • Nia Bailey, Amari Swint

    Nia Bailey, 8, of Washington, left, and Amari Swint, 8, of Philadelphia, throw water balloons while in an inflatable pool during a seventh annual block party on Newton Street in northwest Washington, during record heat with temperatures in the triple digits, Saturday, July 7, 2012. (AP Photo/Jacquelyn Martin)

  • Tracy Canty

    Tracy Canty, of Washington, wears a towel over his head against the sun and heat while cleaning off a grill in Washington, during record heat with temperatures in the triple digits, Saturday, July 7, 2012. (AP Photo/Jacquelyn Martin)

  • Ryan Lankamp

    Gambler gets a cooling shower from Ryan Lankamp, left, of Shelbyville, Michigan, following competition in the Ranch Sorting Championship at State Fair Parkin Oklahoma City, Friday, July 6, 2012. (AP Photo/Sue Ogrocki)

  • Luis Saavevra shades from the heat with a giant U.S. flag umbrella as he plays chess on an over-sized board in Union Square as temperature reached the 90s on Friday, July 6, 2012 in New York. he National Weather Service reported late Thursday that the record-breaking heat that has baked the nation's midsection for several days was slowly moving into the mid-Atlantic states and Northeast. (AP Photo/Bebeto Matthews)

  • The sun rises Sunday, July 15, 2012, in Pleasant Plains, Ill. Corn stalks are struggling in the heat and continuing drought that has overcome most of the country. All of Illinois is officially in a drought, and Illinois Gov. Pat Quinn plans a trip to southern Illinois to discuss the state's plans for responding to dry conditions. (AP Photo/Seth Perlman)