The Brief Hot and humid conditions continue Upper 90s to near 100 through Saturday Rain chances begin to increase this weekendThe hot and humid conditions will continue across the Houston area for Friday. Houston weather: Friday's weather to be hot, humidANOTHER STEAMY AFTERNOONHigh temperatures will climb into the upper 90s to near 100 again on Friday, with heat index values well into the triple digits. Image 1 of 2 ▼THE HOTTEST DAYS ARE AHEADThe heat peaks Friday and Saturday, with highs in the upper 90s to near 100 across much of Houston and Southeast Texas. A FEW MORE STORMS RETURNMoisture gradually increases this weekend, bringing a better chance for scattered showers and storms from Saturday into early next week. Rain coverage remains limited, but temperatures may ease slightly by Sunday.