SIOUX CITY | After a scorcher of a Tuesday in which heat index values hung in the triple digits until sunset, Wednesday looks to be another day of high heat.
Mike Gillispie, a meteorologist with the National Weather Service in Sioux Falls, said Wednesday's high will reach 92 degrees, and heat indices will likely be between 95 and 98 degrees.
Several Siouxland counties fell under a heat advisory Tuesday as temperatures entered the low 90s, with humidity ratcheting up the heat index values.
At Sioux Gateway Airport, the temperature crested at 93, with a heat index at 109 degrees around 3 p.m. The heat index remained at or above 100 until 9 p.m.
Gillispie said slightly lower temperatures and lower humidity should keep Sioux City out of another advisory today.
Gillispie Sioux City has a 20 to 30 percent chance of afternoon thunderstorms around 2 to 3 p.m. Wednesday.
Thursday looks to be a slight reprieve from the intense heat, with a high of 84 degrees. Temperatures will warm back up to 88 Friday and enter the 90s again on Saturday.