| NWS Forecast for: San Marcos TX Issued by: National Weather Service Austin/San Antonio, TX Last Update: 11:34 am CDT Jul 3, 2025 |  |
| Today: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts between a quarter and half of an inch possible. Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers. Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. Independence Day: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 88. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Friday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 74. South wind 5 to 10 mph. Chance of precipitation is 20%. Saturday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 88. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Saturday Night: Mostly cloudy, with a low around 73. South southeast wind 5 to 10 mph. Sunday: Partly sunny, with a high near 92. Calm wind becoming south southeast around 5 mph in the morning. Sunday Night: Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm after midnight. Monday: Mostly sunny, with a high near 94. Calm wind becoming south southeast around 5 mph in the afternoon. Monday Night: Mostly clear, with a low around 72. Tuesday: Sunny, with a high near 95. Tuesday Night: Partly cloudy, with a low around 73. Wednesday: Sunny, with a high near 97. | |
| San Marcos TX 29.88°N 97.94°W (Elev. 577 ft) | |
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