Thursday, May 28, San Antonio woke up under a patchy layer of fog that should thin by mid-morning, then hand things over to mostly sunny skies and a high near 89°F. Morning humidity is already making itself known, with dew points in the mid-to-upper 60s in some neighborhoods, so expect it to feel plenty muggy as the day wears on. Winds stay light at 0–5 mph, which keeps the heat from feeling windy but does nothing to shake off that sticky air. Overnight lows are expected to settle near 71°F.
Foggy Mornings, Sunny Afternoons
Patchy fog is expected to linger in low-lying areas and along some river valleys through about 10 a.m., especially east of the Balcones Escarpment. Visibility could briefly drop on surface streets and highways, so give yourself extra stopping distance and flip on your headlights if you roll into a fog bank. Once the fog lifts, skies turn mostly sunny, with afternoon highs topping out near 89°F.
Hotter Through The Weekend
Temperatures creep up into the low 90s by Friday and stay there through the weekend, with highs around 90°F on Friday and about 91°F on both Saturday and Sunday. Winds remain light out of the south to southeast at 0–10 mph, so the heat will gradually build without any help from strong gusts. A low-end chance for scattered showers and thunderstorms returns late Monday into Tuesday, with coverage generally near 20%, according to NWS Austin/San Antonio.
What To Expect On The Road
If you are commuting before 10 a.m., plan on slower travel, since fog and wet pavement from recent rains can team up to reduce both visibility and traction. Outdoor plans are best slotted for mid- to late-morning once the fog burns off, and you will want to bring water if you will be active in the afternoon warmth. No watches or warnings are in effect for the San Antonio area this morning.
More Background
For more context on the same warm and muggy pattern and earlier foggy starts this spring, check out our recent coverage. A prior forecast detailing the weeklong warming trend also looks at where spotty storms may return next week.
