| NWS Forecast for: San Marcos TX Issued by: National Weather Service Austin/San Antonio, TX Last Update: 4:32 am CST Jan 15, 2026 |  |
| Today: Sunny, with a high near 65. North northwest wind around 5 mph becoming south in the afternoon. Tonight: Clear, with a low around 44. South southwest wind 5 to 10 mph. Friday: Sunny, with a high near 72. Southwest wind around 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Friday Night: Mostly clear, with a low around 42. North northeast wind around 10 mph, with gusts as high as 20 mph. Saturday: Mostly sunny, with a high near 54. North northeast wind around 10 mph, with gusts as high as 20 mph. Saturday Night: Mostly clear, with a low around 30. North northeast wind 5 to 10 mph becoming light and variable after midnight. Sunday: Sunny, with a high near 60. West northwest wind around 5 mph becoming south southwest in the morning. Sunday Night: Mostly clear, with a low around 38. South southwest wind around 5 mph. M.L.King Day: Mostly sunny, with a high near 63. South southwest wind 5 to 10 mph becoming east southeast in the afternoon. Monday Night: Mostly cloudy, with a low around 42. Tuesday: A 20 percent chance of showers. Cloudy, with a high near 53. Tuesday Night: A 30 percent chance of showers. Cloudy, with a low around 44. Wednesday: A 30 percent chance of showers. Mostly cloudy, with a high near 60. | |
| San Marcos TX 29.88°N 97.94°W (Elev. 577 ft) | |
Visit your local NWS office at: https://www.weather.gov/ewx |
