Weather In Houston In April 2025. It is based on noaa data. Daily low temperatures increase by.

Get the monthly weather forecast for houston, tx, including daily high/low, historical averages, to help you plan ahead. In houston, the average temperature is around 69.4°f (20.8°c), with highs reaching up to 78.8°f (26°c) and lows dropping to about 61.7°f (16.5°c).