Houston is waking up clear and already sticky Saturday, with temperatures around 81 degrees before sunrise and humidity hovering near 94%. By afternoon, the city is headed for a high near 100 degrees, with the heat index making it feel closer to 105.
The National Weather Service Houston/Galveston has a Heat Advisory in effect through 7 p.m. Sunday, warning that peak heat index values across the region could reach 106 to 112 degrees. Residents should expect the most dangerous conditions during the afternoon, when light winds will offer little relief.
Triple-Digit Heat Arrives Saturday Afternoon
Saturday will stay mostly sunny through the afternoon, with a slight chance of showers and thunderstorms developing after 4 p.m. The rain chance is only 20%, and the best opportunity for a storm is north of Interstate 10, so most Houston neighborhoods will likely remain dry.
Saturday night should turn partly cloudy, but the low will only fall to around 81 degrees. The heat index could still reach 104 before evening temperatures finally ease, making air conditioning and hydration especially important for anyone spending time outdoors.
Little Relief Through Next Week
Sunday brings another sunny day near 100 degrees, followed by highs around 99 Monday, 98 Tuesday, and 99 Wednesday. Thursday should reach about 98, with Friday still near 97, while overnight lows remain stuck around 80 to 81 degrees.
Coastal areas will run cooler than inland Houston, with Galveston forecast near 93 degrees this weekend, but the humidity will keep conditions uncomfortable across Southeast Texas. The stretch is a hotter follow-up to last week’s Houston forecast, with the latest outlook now carrying an active advisory and several more days of near-triple-digit heat.
Heat Safety Is The Main Story
Plan strenuous outdoor work for early morning or evening, take frequent breaks in shade or air conditioning, and drink plenty of fluids. The National Weather Service also recommends checking on older neighbors and anyone without reliable air conditioning.
Anyone showing signs of heat exhaustion should be moved to a cool location immediately. Confusion, fainting, seizures, or hot skin can signal heat stroke, which is an emergency requiring a call to 911.
