San Antonio woke up to a gray, muggy start Friday, with mostly cloudy skies, mid-60s readings (about 66°F) and humidity already hanging in the air. The rest of the day is set to warm to a high near 79°F, with a slight chance of a few passing morning showers and a better shot at showers and thunderstorms Friday night into early Saturday. Most spots will only see hit-or-miss rain, but localized heavy downpours and gusty winds are on the table, especially south and west of the city.
Storm Timing And Where To Watch
Forecasters are calling for a slight chance of showers and isolated thunderstorms from about 7 a.m. to 10 a.m. Friday, with another, more robust round likely between about 7 p.m. Friday, May 8 and 4 a.m. Saturday, May 9. In steadier downpours, new rainfall totals could land between a tenth and a quarter of an inch, and any storm that muscles up may throw in some hail and strong wind gusts. There are no watches or warnings in place right now, but residents along the Rio Grande Plains and near Highway 90 are urged to keep tabs on changing conditions, according to NWS Austin/San Antonio.
Weekend Outlook
Saturday is expected to climb into the mid-80s, with a lingering chance of morning showers before skies trend partly sunny. By Saturday night, skies should turn mostly clear with lows near 70. Sunday looks like the real sizzler, with highs near 90°F, before another front moves in and bumps up rain and storm chances Sunday night into Monday morning. Northeasterly winds will turn breezy, with gusts up to about 25 mph possible. That is a slight adjustment from what was sketched out last weekend, as seen in last weekend's forecast preview.
Plan Ahead
If you have outdoor plans Friday evening or early Saturday, it is smart to have a backup play and keep an eye on your phone radar - brief heavy downpours can cut visibility and slick up the roads in a hurry. Tie down or move light yard items in case a storm pops south and west of the metro, and consider shifting gatherings indoors if the skies start to rumble. Otherwise, get ready for a warmer, more humid stretch sliding into next week.
