This browser does not support the Video element.
Dallas Weather: June 28 evening forecast
Dan Henry has the latest forecast.
An Excessive Heat Warning has been issued until Wednesday evening for much of North Texas.
Wednesday is expected to be the hottest day of the week, according to the FOX 4 Weather team.
But it will hopefully be less humid. So after days of a heat index between 114 and 116 degrees, it should top out at a less brutal 110 on Wednesday.
'Heat Dome' cranks up the temps in Texas - here's what it is.
In Texas, the average daily high temperatures have increased by 2.4 degrees — 0.8 degrees per decade — since 1993, according data from the National Oceanic and Atmospheric Administration.
The heat warning is expected to be downgraded to a Heat Advisory on Thursday and Friday.
READ MORE: Fort Worth Stockyards cattle drive schedule affected by heat
On Tuesday, the heat index climbed to 116 in Denton.
MedStar crews treated 12 patients for heat-related illnesses on Tuesday. 10 of those patients were taken to area hospitals and one of them was in critical condition.
RELATED: Popular Dallas nature preserve closing early due to excessive heat
North Texans unable to stay inside try to stay cool in triple-digit heat
Most people are choosing to stay inside to stay safe from this dangerous heat, but some don't have much of an option.
The triple-digit heat should slowly retreat later this week and fall below 100 by Sunday.
And rain chances may go up into the weekend and on Monday.
READ MORE: ERCOT issues weather watch through Friday
Stay cool and hydrated throughout the week!
You can download the FOX 4 WAPP for the latest updates on the heat, storms and more.