San Antonio is heading into another furnace-like afternoon, with temperatures expected to rise from around 80 degrees early Tuesday to nearly 100 under sunny skies. The heat index could reach 108, while rain chances remain slim across the metro.
Heat Peaks Tuesday Afternoon
The National Weather Service forecast calls for a high near 100, with south-southeast winds around 5 mph and only a 10% chance of rain. No watches, warnings or advisories are currently posted for the area.
Little Relief After Sunset
Tuesday night will stay mostly clear, but it will not cool off much, with a low around 79. Heat index values could remain as high as 107 during the evening, and any rainfall would likely total less than a tenth of an inch.
Wednesday Brings Slightly Lower Heat
Wednesday should be mostly sunny with a high near 97 and heat index values up to 106. The latest forecast update adds a chance for isolated showers and thunderstorms closer to the Austin area, while San Antonio is expected to stay mostly dry.
Hot Pattern Holds Through The Weekend
Temperatures are forecast to reach 97 Thursday, 98 Friday, 99 Saturday and 98 Sunday, with mostly sunny skies prevailing. A slight chance of showers and thunderstorms arrives late Friday night, while Monday brings a 20% chance of morning showers and another high near 97.
With afternoon heat approaching triple digits, residents should schedule strenuous outdoor work earlier in the day, drink plenty of water and take regular breaks in air conditioning or shade. Even when the sky is clear, the combination of heat and humidity can make outdoor conditions more taxing than the thermometer suggests.
