Houston is waking up Thursday under mostly cloudy skies, sticky air and an uneasy rain forecast. Temperatures are around 82 degrees early, with showers and thunderstorms becoming more likely later in the day as the city heads toward a high near 90.
The storm window sharpens around early afternoon, when rain chances rise to about 65% and temperatures may fall into the upper 80s. The heat index could still reach 102 degrees before the downpours arrive, so outdoor plans may get squeezed between oppressive humidity and sudden lightning.
Flood Concern Is Highest North And East
The National Weather Service Houston/Galveston says a Flood Watch remains in effect through Thursday afternoon for portions of Southeast Texas, with Harris and Waller counties excluded from the latest watch area. Forecasters say the greatest concern is north and east of Houston, especially around the Piney Woods and the Houston County-to-Liberty County corridor, where saturated ground could turn additional heavy rain into fast runoff.
Houston's forecast allows for 1 to 2 inches of new rain Thursday, though totals could vary sharply from neighborhood to neighborhood. The weather service is urging people in flood-prone areas to monitor updates and avoid driving or walking through water covering a road; the latest discussion is available from the National Weather Service.
Storm Chances Continue Through Labor Day
Thursday night's rain chance remains near 40%, with a low around 79 and another three-quarters to 1 inch possible in heavier pockets. Friday stays warm and unsettled, with a high near 91, a heat index around 102 and a 50% chance of showers and thunderstorms.
The weekend keeps Houston's familiar late-summer formula in place: mostly sunny breaks mixed with daily storm chances. Saturday could reach 92 with a 60% rain chance, Sunday remains near 92 with a 40% chance, and Monday's Labor Day forecast calls for sun followed by a 30% afternoon storm chance.
This is a meaningful change from Hoodline's Wednesday report, as the most concentrated flood threat shifts farther north and east while scattered thunderstorms remain possible across the Houston area. Winds should generally stay light at 5 to 10 mph, but stronger gusts and intense rain remain possible inside thunderstorms.
