San Antonio, TX Weather: Red Flag Warning and Wind Advisory Today, Then Calm and Sunny Through Trick-or-Treat Friday

0
-Advertisement-

SAN ANTONIO, Texas – The early morning wind cuts across the Alamo City, bending tree limbs and scattering leaves down the sidewalks. It’s a brisk start under clear skies, and for now, gusty north winds dominate much of South Texas. By afternoon, the region will begin its transition toward a calm, sun-drenched Halloween stretch — but not before a Wind Advisory and Red Flag Warning make their mark.

The National Weather Service in Austin/San Antonio has extended a Red Flag Warning through 7 p.m., with wind gusts reaching 30 mph and humidity levels dropping sharply. Fire danger remains elevated, especially along and west of I-35 where vegetation is dry. Residents should avoid outdoor burning and use caution with equipment that could spark flames.

By Thursday, winds ease and temperatures rebound into the low 70s under clear skies. Friday’s Halloween weather looks nearly perfect — sunny, mild, and crisp, with afternoon highs around 75°F and light evening breezes. Trick-or-treaters can expect comfortable air near 68°F around sunset, and no rain in sight for neighborhood events or downtown festivities.

The weekend continues that golden streak. Saturday brings upper 70s, plenty of sun, and only a slim 20% chance of a stray shower late in the day. Sunday follows with sunshine near 77°F and clear, cool air returning Sunday night.

After all, it’s the kind of classic Texas fall week that delivers breezy mornings, blue skies, and a reminder that November’s chill is just around the corner.


Five-Day Outlook for San Antonio, TX
Wed: 69/42 – Windy; Red Flag Warning in effect.
Thu: 73/46 – Sunny, calm, pleasant.
Fri: 75/54 – Clear, mild, perfect Halloween conditions.
Sat: 79/56 – Mostly sunny; slight shower chance late.
Sun: 77/58 – Clear, mild; clocks fall back early morning.