San Antonio started Monday in full-on sauna mode, with cloudy, muggy conditions near 75°F at daybreak and temperatures expected to climb into the upper 80s this afternoon. Southeast winds should stay on the lighter side and rain is not expected this evening, so most outdoor plans are in the clear for now.
Afternoon Heat And Humidity
The humidity is doing the heavy lifting today, making it feel warmer and stickier than the thermometer suggests. Dewpoints in the low 70s will keep that muggy blanket firmly in place. If you can, dodge the peak afternoon hours, when it will feel the most oppressive outside.
Storm Chances Pick Up Tuesday
According to the NWS Austin/San Antonio, highs should top out near 89°F today, but moisture surging north from the Gulf on Tuesday (June 2, 2026) will bump up the odds for scattered showers and thunderstorms Tuesday afternoon and evening. Forecasters say the main concerns will be brief heavy downpours and gusty winds, with elevated storm chances holding on through Thursday and Friday.
Commute And Event Notes
Overnight into Tuesday morning, patchy fog and lower cloud ceilings could lead to MVFR conditions along the I‑35 corridor. Plan a little extra time for the morning commute and give the radar a quick check before you roll out. For heat-safety tips and cooling-center locations, the City of San Antonio points residents to SA.gov.
Plan Ahead
All week, it is smart to keep water and a light rain jacket handy and keep an eye on afternoon radar, since storms can flare up quickly and drop intense rain that floods low spots. This outlook follows our late‑May preview of the pattern, which flagged this steamy, storm-prone stretch setting up over the city.
