A weather forecast for Houston, Texas on October 18, 2026 calls for a chilly start to the day, with morning temperatures expected to sit in the upper 40s to lower 50s Fahrenheit. Later, the forecast shifts to sunshine and warmer conditions, with afternoon highs projected in the mid‑70s.
The cooler morning marks a brief dip before temperatures rise later in the day, providing a contrast to the rest of the weekend.