Austin, Texas – Fog across the I-35 corridor early Thursday is reducing visibility to a quarter mile in pockets from San Marcos to Georgetown, slowing the morning commute and prompting caution on bridges and elevated ramps. Conditions are expected to improve by midmorning as warmer air mixes out the low cloud deck, opening the door to a rapid warmup across Central and South Texas.
According to the National Weather Service in Austin–San Antonio, temperatures will climb into the upper 70s and 80s by early afternoon, with the lower 90s possible along the Rio Grande where clearing occurs fastest. Skies will turn mostly sunny after the fog dissipates, allowing heat to build quickly along major routes including I-35, I-10, U.S. 281 and U.S. 290. The agency notes that dry conditions will persist through the period, with no rainfall expected.
Drivers traveling during the morning should expect patchy dense fog around New Braunfels, Seguin and the Hill Country stretches of I-10, where visibilities may shift abruptly. Once the sun breaks through, heat will rise sharply, especially in urban areas where pavement retains warmth.
The upcoming pattern brings above-average temperatures Friday into Saturday before a cooler push arrives Sunday into early Tuesday. Lows remain mild across the region, offering little overnight relief as the next warm surge redevelops midweek.
Officials encourage residents to stay hydrated during outdoor work, check vehicles before long drives and remain watchful for lingering fog in valleys and low-lying areas through midmorning.
More updates may follow if visibility worsens or if temperatures climb above expected values this afternoon.
