Weather For December 2024 Houston Weather. Get the monthly weather forecast for houston, tx, including daily high/low, historical averages, to help you plan ahead. Weather.com brings you the most accurate monthly weather forecast for houston, tx with average/record and high/low temperatures, precipitation and more.

The average temperature is 15.0°c (59°f), with highs of 18.9°c (65.9°f) and lows of 11.5°c (52.6°f). F all warmth will be widespread across much of the united states but a chillier pattern could arrive by december, according to an outlook released thursday by the weather.