San Antonio

San Antonio Braces for a Week of Mixed Weather Leading to Early Summer Heatwave

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Published on May 09, 2025
San Antonio Braces for a Week of Mixed Weather Leading to Early Summer HeatwaveSource: Unsplash/Matthew LeJune

San Antonio residents can expect somewhat of a mixed bag when it comes to weather this week, starting with today's slight chance of isolated showers and mostly sunny skies. According to the National Weather Service, the high today near 84 degrees will be accompanied by a north wind at 5 to 10 mph, with potential gusts as high as 20 mph. For those planning evening activities, the skies are expected to clear by nightfall with lows around 63 degrees and the same north wind calming slightly.

Heading into the weekend, the forecast suggests more isolated showers after 1pm on Saturday, though most of the day should remain mostly sunny with a high near 81 degrees. The consistent north to northeast wind may call for that light jacket with gusts once again reaching up to 20 mph. "Chance of precipitation is 20%," the forecast notes, keeping outdoor plans on a tentative footing. Saturday night is predicted to be mostly clear with a low hovering around 62 degrees.

Sunday is shaping up to be an idyllic day for any outdoor endeavors—think picnics, hikes, or a casual stroll along the River Walk—with sunny skies and a high near 87 degrees. The night remains clear too, dropping to a more refreshing low around 58 degrees. Come Monday, temperatures are poised to climb, ushering in what appears to be the early onset of summer heat. The clear, sunny conditions are set to intensify with a high approaching 91 degrees and light southwest winds in the afternoon.

To kick off the next work week, residents should brace themselves for high temperatures, with Tuesday potentially reaching a scorching 99 degrees, dragging in the heat under sunny skies. "Sunny and hot, with a high near 99," confirms an the extended forecast. The pattern holds through midweek, with Wednesday also predicted to breach the century mark, which seems to suggest that the climes of summer are indeed knocking on our doors a tad earlier than usual.

As we approach end of the week, the warming trend lingers, with Thursday mimicking the previous days—mostly sunny and hot, with a high again near 99 degrees. Tuesday and Wednesday nights offer little reprieve, with lows settling around the upper 60s to 70 degrees and partly cloudy skies. It appears that San Antonio is set for a week that ushers in a gradual increase in temperature, culminating in what could be an early wave of summer heat.