San Antonio

San Antonio Wakes Up In A Fog, Then Bakes In Sticky 90s Heat

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Published on May 05, 2026
San Antonio Wakes Up In A Fog, Then Bakes In Sticky 90s HeatSource: Unsplash/ Katie Moum

San Antonio starts Tuesday, May 5, 2026, on the soggy side, with cloudy skies, muggy air and temperatures hovering near 70°F. Patchy fog is expected to develop between about 8 and 9 a.m., then thin out as the morning wears on. Once the clouds start to break around midday, the heat takes over, with readings climbing into the low 90s and a light south breeze around 5 to 10 mph. Dew points in the mid-60s will make it feel extra sticky by mid-afternoon.

Fog Lifts, Heat Cranks Up

The fog should clear quickly, but the warmth and humidity are here to stay for the rest of the day. The National Weather Service Austin/San Antonio is calling for a high near 91°F this afternoon, with skies trending from mostly cloudy to partly sunny and south winds around 5 to 10 mph. With dew points holding in the mid-60s, apparent temperatures will run higher than the thermometer, and forecasters note that some sunnier inland spots could briefly feel close to 100°F. It is a good day to stay hydrated and, if you can, schedule outdoor chores or workouts during the cooler morning hours.

Midweek Front Brings Storm Chance And Cooldown

A cold front is expected to move in Wednesday evening into early Thursday, bringing back rain and storm chances and knocking daytime highs down into the mid-70s on Thursday. Our earlier coverage that flagged the same warming trend remains on track, but the latest forecast discussion now puts low-to-medium, roughly 20-40%, odds on showers and thunderstorms from Wednesday night into Thursday. Behind the front, north-northeast winds around 10 to 15 mph are expected, with gusts up to 25 mph possible. Any storms that do pop up will likely be isolated yet could still pack hail or damaging wind gusts where they hit, so it is worth keeping an eye on late-night plans Wednesday and early Thursday.

Commute And Outdoor Plans Could Need A Tweak

Morning fog may cut visibility over bridges and in low-lying spots, so plan on a little extra drive time around sunrise. If you have outdoor events lined up for Thursday, consider shifting them earlier in the day or making sure tents and canopies are secured against those expected gusts. For hour-by-hour details and any watches or warnings that might be issued, check the National Weather Service and local updates through the week.

Bottom line: warm, humid and mostly dry today, with a shot at isolated storms midweek and a noticeable cooldown on Thursday. This space will be updated if the forecast is raised to an advisory or warning.