 In the mid-90s, you could see heat index values throughout the day tomorrow between 105 and 110 degrees. Then for tomorrow night, expect partly cloudy skies, a 20 to 30 percent chance of showers and thunderstorms. Lows in the mid-70s. Then for Wednesdays, rain chances going back up to 70 percent. Showers and thunderstorms throughout the day with partly cloudy skies and high temperatures in the mid-90s.