The Brief Hot and humid today with isolated late-day storms. Scattered storms return tomorrow, followed by rain chances into the weekend. Highs will reach the upper 90s across much of the Houston area today, with heat index values around 103 to 105. Rain chances begin to climbChanges arrive Thursday as deeper moisture supports scattered afternoon showers and storms, especially along and south of I-10. Temperatures ease slightly, but it remains humid, with daily storm chances continuing to increase heading into the weekend.