Denverites should watch out for the ultraviolet rays on Wednesday and snowflakes on Thursday. 
 
 While suntan lotion should be uppermost in the minds of Denver sunbathers Wednesday, a brisk northern front will make residents wish they remembered their coats before heading to work or school on Thursday. 
 
 “The forecast has a bit of Yin & Yang in it over the next two days. Near record heat tomorrow, light snow arrives Thursday,” the weather service says. 
 
 The high temperature Wednesday in downtown Denver will be around 80 degrees under sunny skies, according to the National Weather Service in Boulder. But after a wind change, the high Thursday will be only about 47 degrees. 
 
 There is a chance of rain between noon and 2 p.m., then a chance for snow after 2 p.m., the NWS says. The high is expected to come around 10 a.m. in the morning, but thereafter will drop to around 36 degrees. 
 
 Blustery winds up to 31 mph will be icy cold. The chance for precipitation is 30 percent. Up to a half inch of snow could accumulate in Denver. 
 
 The overnight low will be around 20 degrees, forecasters say. 
 
 It will be sunny Friday, but the high will only reach 40 degrees. The low will drop to around 21 degrees. 
 
 A weekend warm up is forecast with highs of 47 on Saturday and 64 on Sunday. 
 
 Another chance of snow is possible Monday and Tuesday, when temperatures will take another nose dive to the 40s and 30s, the NWS says. 
 
 Click here for more Denver7 weather coverage. ||||| A degree higher Thursday and Denver would have set a record, but the weather gods settled on 105 degrees — and many a mere mortal sighed relief. 
 
 How’s your air conditioner working? 
 
 Denver’s temperature soared to 105 degrees at 2:20 p.m. Thursday, tying the highest temperature recorded in the city for any day, according to the National Weather Service. The big 105 was first reached in Denver on Aug. 8, 1878, and then returned for encores on July 20, 2005, and June 25 and 26, 2012. 
 
 “It’s the fifth time we’ve hit that!” said Kyle Fredin, a meteorologist and spokesman for the weather service. 
 
 At 2:20pm Denver (KDEN) reached 105°. This ties Denver's all time record high temperature set on 4 previous dates: 2012(2), 2005 & 1878. #COwx pic.twitter.com/mXCO7IRwe4 — NWS Boulder (@NWSBoulder) June 28, 2018 
 
 The previous record-high temperature for Denver on June 28 — a chilly 99 degrees, set in 1986 — was smashed at 11:31 a.m. Thursday, when the temperature entered triple digits — 100. The soaring heat, however, was hardly done for the day. 
 
 “When it’s over 100, that’s really hot,” Fredin confirmed. 
 
 Official city temperatures for Denver are recorded at Denver International Airport. 
 
 Elsewhere in Colorado, Thursday’s high temperatures were even hotter. In the southeast part of the state, the mercury topped 105 in several areas. Lamar was Colorado’s hot spot, hitting 109 degrees. The unseasonably sizzling weather raised wild land fire dangers to extremes. 
 
 Coloradans were advised to seek shade, stay hydrated and not overextend themselves. 
 
 The hot weather triggered warnings about everything from wildfire threats and heat stroke. Also, people who shoot off illegal fireworks face steep fines. 
 
 Record highs are likely today with Denver reaching the low to mid 100s. A Red Flag Warning is in effect from 11am to 9pm today for higher elevations and areas along and near the Cheyenne Ridge. #COwx pic.twitter.com/4AFlhuOHRD — NWS Boulder (@NWSBoulder) June 28, 2018 
 
 Dr. Maya Bunik, medical director of Children Hospital’s child health clinic, said kids are especially vulnerable in extremely hot weather. Children may notice it’s hot but not understand the risks or how to stay safe, she said. 
 
 “I think parents should be on to that when it gets to 100,” Bunik said Wednesday. 
 
 Bunik said heat exhaustion is one of the biggest concerns for children, who can display cold, pale, weak and sweaty symptoms. Heat stroke is very unusual but very dangerous, she said. People become lethargic and get a temperature. 
 
 Much of Colorado was under fire warnings Thursday. A red flag warning was in place from 11 a.m. to 9 p.m. The relative humidity was expected to drop to around 10 percent Thursday, the weather service said. 
 
 “Rapid fire growth and spread will be possible under these hot, dry and breezy conditions,” the weather service said. 
 
 Denver, the northern Front Range foothills, high mountain valleys of north-central Colorado were included in the warning. 
 
 Homeowners should not water their lawns during the hottest part of the day, Denver Water spokesman Travis Thompson said. 
 
 “It’s not going to help to water at noon. … (The water) is just going to evaporate and you end up losing money for the water,” Thompson said. 
 
 Summer watering restrictions are in place, prohibiting watering between 10 a.m. and 6 p.m. 
 
 Fire officials in several Denver metro cities and counties have warned residents to obey fireworks laws, especially after temperatures in the upper 90s and lower 100s have dried out lawns and bushes. 
 
 Aurora police Officer Bill Hummel said the city has already started extra patrols looking for violators of the city’s fireworks ban. The top fine for illegal fireworks is $2,650, he said.
– Denver is set to see a bigger temperature change in the space of a day than some places experience over a year, forecasters say. "The forecast has a bit of Yin & Yang in it over the next two days," the National Weather Service tweeted Tuesday. "Near record heat tomorrow, light snow arrives Thursday." The Wednesday temperature ended up being a record 84 degrees, 4 degrees higher than the previous record for Oct. 25, which was set in 2007, CBS reports. But the winter coats will be coming out Thursday: The Denver Post reports that after a wind change, the temperature is expected to drop to the mid-30s by afternoon, followed by an overnight low of around 20. Around half an inch of snow could accumulate after lunchtime Thursday, rising to up to 5 inches at higher elevations.