San Antonio is starting Tuesday, July 28 on the steamy side, with partly cloudy, muggy skies and temperatures in the mid-70s, and it only gets more brutal from here. As clouds thin out to mostly sunny skies, temperatures are expected to surge into the upper 90s, with humidity driving the heat index into the 105 to 107°F range this afternoon. If you can help it, avoid strenuous outdoor activity between noon and 7 p.m. Tuesday, July 28 when the heat will be at its most punishing.
Afternoon Heat And Advisory
The forecast calls for a high near 98°F, with south-southeast winds around 5 to 10 mph and stronger gusts possible into the evening. According to the National Weather Service, a Heat Advisory is in effect for parts of the Coastal Plains and the Rio Grande Plains from noon to 7 p.m. Tuesday, July 28, with heat index values expected to peak around 106°F. Overnight does not offer much of a break either, with lows near 78°F and south-southeast wind gusts that could reach 25 mph in some areas.
How To Stay Safe
Hydrate early and often, grab shade whenever you can, and push any heavy outdoor work to the cooler parts of the day. The City of San Antonio offers a list of cooling sites and heat resources that residents can turn to if air conditioning or power goes out. Check in on elderly neighbors and anyone with medical conditions that make heat more dangerous, and do not forget pets, bring water and limit how long they stay outside. A little attention now can keep a minor discomfort from turning into a serious heat illness.
Looking Ahead
The heat is not leaving town anytime soon. The rest of the week stays hot, with highs mainly in the 99 to 100°F range and stubborn overnight lows in the upper 70s. That means several more days with uncomfortable heat index values above 105°F. Late in the week, guidance suggests the large subtropical ridge could nudge westward, which might open the door for a weak front and a few isolated storms over the weekend. For the moment, though, the outlook favors dry, very hot weather right through the end of July.
