WICHITA FALLS, Texas (TNN) - Temperatures officially reached 100 for the first time this year in Wichita Falls Wednesday afternoon. A cool front may help tirgger an isolated storm later tonight and Thursday. However, the bigger weather story will be a drop in temperatures and humidity late Thursday and into Friday and the weekend. Highs will drop into the lower and middle 90s. Lows at night could drop into the 60s.