Austin is starting Monday in the mid-70s under mostly clear skies, but the morning calm is a brief prelude to a high near 103°F by late afternoon. The bigger story is the staying power: triple-digit temperatures are expected to dominate the forecast through Sunday.
Triple-Digit Heat Sticks Around
Monday will be sunny with a high near 103°F, followed by highs around 102°F Tuesday and Wednesday. Temperatures are expected to climb back to about 103°F Thursday through Sunday, according to the National Weather Service.
Early Clouds Fade Before The Furnace Turns On
Some low clouds or patchy fog may briefly affect parts of the I-35 corridor early Monday, with conditions clearing by midmorning. The hottest stretch arrives during the afternoon, when light south winds of 0 to 5 mph will offer little relief.
Warm Nights Keep Relief Limited
Monday night will be mostly clear with a low around 78°F, while overnight lows stay in the upper 70s through the week and reach about 80°F Saturday night. Tuesday’s heat index could reach 105°F, making outdoor activity feel more oppressive even as the forecast remains mostly dry.
Rain Nearly Disappears From The Forecast
Rain chances remain at zero through Thursday, then rise only slightly to 2% Friday, 5% Saturday and 2% Sunday. The National Weather Service says the dry, hot pattern is expected to continue into the weekend, with no watches, warnings or advisories currently posted for the Austin area.
For anyone spending time outside, the practical strategy is simple but important: shift strenuous plans toward the morning, drink water steadily and take regular breaks in air conditioning or shade. Monday is expected to be comparatively less humid than later in the week, but 103°F is still plenty hot enough to demand heat-smart planning.
