Austin/ Weather & Environment

Austin Weather Forecast Brings 100-Degree Weekend Heat

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Published on August 28, 2026
Austin Weather Forecast Brings 100-Degree Weekend HeatSource: City of Austin

Austin is waking up to clear skies and temperatures near 76 degrees Friday, but the city is headed for a near-100-degree afternoon. A slight chance of showers and thunderstorms arrives late in the day, offering a possible interruption to the heat rather than a true cooldown.

Friday Heat Peaks By Afternoon

Temperatures should climb to about 100 degrees, with heat-index values reaching as high as 107. The storm chance rises after 4 p.m., but precipitation odds remain at 20%, and southeast winds should stay light at 0 to 5 mph. The National Weather Service says stronger storms could still produce gusty winds.

Warm Nights And A Sunny Weekend

Friday night will dip only to around 78 degrees, with a slight chance of storms before 7 p.m. Skies should turn mostly clear afterward, setting up a sunny Saturday with another high near 100 and a low around 78. Sunday looks just as hot and dry, with a high near 100 and a low around 77.

Triple-Digit Heat Sticks Around

The heat is expected to continue into next week, with highs near 100 from Monday through Wednesday. Thursday could be the hottest day of the extended forecast at 101 degrees, while overnight temperatures remain mostly in the upper 70s. Rain chances stay very low through the period, with mostly sunny or mostly clear skies dominating the outlook.

Plan Around The Hottest Hours

The forecast lists no active watches, warnings or advisories for the Austin area, but the combination of triple-digit temperatures and warm nights can still create heat stress. Outdoor work and exercise are best handled in the morning or evening, with regular water breaks and time in the shade or air conditioning. Anyone spending time outside should also keep an eye on children, older adults and pets during the hottest part of the day.

Austin-Weather & Environment