The Houston weather forecast is expected to remain warm, humid, and mostly dry for the weekend, with temperatures reaching the 90s and heat index values reaching the 100s. The Weather Prediction Center has placed areas along and north of I-10 in a Marginal Risk for excessive rainfall, which could lead to minor flooding or minor street flooding. Saturday will see increasing storm coverage, locally heavy rain, and minor flooding is possible. Despite this, temperatures will remain above the 80s and 90s throughout the day, with highs expected to reach the upper 60s and low 70s. Meanwhile, a cold front will move into the region, leading to cooler and breezy conditions behind the front. The forecast also includes a 50 percent chance of scattered to numerous showers and thunderstorms.