Houston, Texas – Heat and humidity are already building across southeast Texas this morning, with heat index values climbing toward 101 degrees by this afternoon, increasing strain on power use and outdoor activity ahead of a midweek storm threat.
According to the National Weather Service in Houston/Galveston, highs will reach 87 to 91 degrees inland and 83 to 87 along the coast Monday and Tuesday, with overnight lows holding in the 72 to 78 degree range. Patchy fog may reduce visibility south of I-10 early Tuesday, especially near Wharton, Bay City, and coastal counties.
Houston, Sugar Land, Conroe, and Galveston will remain under hot, humid conditions through Tuesday, with isolated afternoon storms possible north of I-10, including areas near College Station and Huntsville. By Wednesday afternoon into the evening, a frontal boundary will trigger scattered thunderstorms across the region.
Some storms could become strong, producing wind gusts over 50 mph and rainfall rates of 2 to 4 inches per hour. Low-lying roads and poor drainage areas—especially along I-45, Beltway 8, and Highway 59—could see brief street flooding during heavier downpours.
Residents should limit outdoor activity during peak heat, stay hydrated, and monitor alerts heading into Wednesday. The storm threat will develop within hours Wednesday afternoon, with additional updates expected as timing and coverage become clearer.
