Houston/ Weather & Environment

Storms Target South Houston, Coast Thursday Before a Hotter, Drier Weekend

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Published on September 17, 2026
Storms Target South Houston, Coast Thursday Before a Hotter, Drier WeekendSource: Henry Han / Wikimedia Commons

Houston's Thursday forecast calls for scattered showers and thunderstorms amid hot conditions, with the best storm chances expected south of Interstate 10 and closer to the coast.

The forecast calls for a 50% chance of rain, with the main shower and thunderstorm chance between noon and 4 p.m., though coastal showers could occur during the morning drive, along with additional activity later in the day. Temperatures should climb near 92 degrees, though storms may briefly reduce the heat, while east winds reach 5 to 10 mph with gusts up to 20 mph, according to the National Weather Service Houston/Galveston.

Afternoon Storms Favor South Of I-10

Thursday is not expected to become a citywide washout, but any storms that form could bring brief heavy rain, frequent lightning and sudden gusty winds. The updated outlook is a wetter setup than the forecast covered in Hoodline's earlier report, especially for coastal counties and areas south of the interstate.

No watches or warnings are posted for Houston, though drivers should be ready for quick changes in visibility and ponding during downpours. Boaters in nearby Gulf waters should also take note of a small-craft caution beginning Thursday morning, as easterly winds approach 20 knots and seas build to 4 to 6 feet by Thursday evening.

Friday And Saturday Bring A Drier Heat

Friday and Saturday turn mostly sunny, but the thermometer will not exactly be taking the weekend off. Highs should reach about 93 degrees both days, with overnight lows in the upper 70s; lower humidity may make the heat feel somewhat less oppressive than Thursday.

Sunday stays hot near 94 degrees, and humidity begins to return along with a small chance of showers. Isolated afternoon storms remain possible through next week, with highs in the mid- to upper-90s and no meaningful cool-down currently in sight.