Austin is waking to clear skies, calm winds and temperatures around 81 degrees Sunday morning, but the comfortable start will not last. A brief chance of showers and thunderstorms arrives later Sunday before the city settles into a hotter stretch, with highs reaching 101 degrees by Tuesday.
Sunday Offers A Brief Rain Window Before The Heat
Rain chances increase Sunday morning, with showers possible from about 7 a.m. to 1 p.m. before scattered thunderstorms become possible through the afternoon. The high should reach 97 degrees, while humidity could push the heat index to 106, and any rainfall is expected to be light.
The National Weather Service Austin/San Antonio expects storm chances to fade after sunset, leaving mostly clear skies and a low near 78 degrees Sunday night. No watches, warnings or advisories are listed for the Austin area.
Labor Day Starts A Hotter Stretch
Labor Day will be mostly sunny with a high near 99 degrees, and the heat index could reach 109. Tuesday climbs to 101 degrees, followed by highs near 100 Wednesday and Thursday, then 101 Friday and Saturday.
Overnight lows will remain in the upper 70s, offering limited relief after dark. The updated forecast is a sharper turn from Saturday's Hoodline forecast, with Sunday's storm chances now more prominent before the triple-digit heat takes over.
Plan Outdoor Time Around The Heat
Light winds will make the afternoon heat feel more intense, especially during the hottest part of the day. Outdoor work, exercise and errands will be safer in the morning or evening, with frequent water and shade breaks for people, children and pets.
