Houston is starting Wednesday with clear skies, calm winds and temperatures near 79°F, but the relatively comfortable morning will not last. The city is headed for another brutally hot afternoon, with only a slim chance that a stray shower or thunderstorm interrupts the heat.
Wednesday Brings A Steamy Peak
Temperatures are expected to climb to about 97°F, while the heat index could reach 109°F during the afternoon. A 20% chance of showers and thunderstorms arrives after 3 p.m., with southwest winds staying light at 5 mph or less. The NWS Houston/Galveston says an isolated storm could form along the sea-breeze boundary, including a chance of a brief cell in Harris County.
Thursday Through Monday Stay Hot
The heat barely backs off Thursday, when Houston is forecast to reach 98°F with a heat index near 105°F. Friday should top out around 97°F, followed by a 99°F Saturday and another 99°F Monday. Overnight lows will mostly sit between 79°F and 81°F, offering limited relief for anyone without strong air conditioning.
Rain Chances Return In Small Doses
Most of the rest of the week looks sunny and dry, but rain chances begin to creep back late Saturday night and continue Sunday, when the forecast allows for a 20% chance of showers and thunderstorms. Tuesday brings another slight chance of afternoon storms, though the high is still expected to reach about 97°F. The extended outlook pushes the heat beyond the midweek pattern described in Hoodline's Monday heat outlook, without offering a widespread rain break.
Plan Outdoor Time Early
Wednesday's hottest stretch will arrive from late morning through the afternoon, making early-day outdoor work or exercise the safer bet. Drink water regularly, take breaks in shade or air conditioning, and check on older adults, children and pets as the heat builds. If a storm develops, move indoors at the first sign of thunder even if the rain looks brief.
