| NWS Forecast for: San Marcos TX Issued by: National Weather Service Austin/San Antonio, TX Last Update: 2:44 am CDT Mar 14, 2026 |  |
Today: Partly sunny, then gradually becoming sunny, with a high near 84. South wind 5 to 15 mph, with gusts as high as 20 mph. Tonight: Increasing clouds, with a low around 64. South southeast wind around 15 mph, with gusts as high as 25 mph. Sunday: Cloudy through mid morning, then gradual clearing, with a high near 92. South wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Sunday Night: Mostly clear, with a low around 39. Breezy, with a north wind around 25 mph, with gusts as high as 45 mph. Monday: Mostly sunny, with a high near 56. North wind 10 to 20 mph, with gusts as high as 35 mph. Monday Night: Mostly cloudy, with a low around 35. North northeast wind 5 to 10 mph becoming light and variable in the evening. Tuesday: Mostly sunny, with a high near 67. South wind 5 to 10 mph, with gusts as high as 20 mph. Tuesday Night: Mostly clear, with a low around 45. South wind 5 to 10 mph, with gusts as high as 20 mph. Wednesday: Sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph. Wednesday Night: Mostly clear, with a low around 52. Thursday: Sunny, with a high near 84. Thursday Night: Clear, with a low around 56. Friday: Sunny, with a high near 89. | |
| San Marcos TX 29.88°N 97.94°W (Elev. 577 ft) | |
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