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City of San Marcos, TexasSan Marcos, TX 7-Day Weather Forecast
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San Marcos Weather Forecast
San Marcos, TX Weather Forecast Date: 135 PM CDT Wed Oct 28 2026
Weather forecast for San Marcos, TX
Today Hi: 80°FHi: 27°C Lo: 65°F Lo: 18°C |
Rest of Today... Partly cloudy with a slight chance of showers and thunderstorms. Near steady temperature around 80. Southeast winds 5 to 10 mph. Chance of rain 20%. |
Thu Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Thursday... Cloudy. Patchy fog in the morning. A chance of showers, mainly in the morning. Highs in the upper 70s. East winds around 5 mph. Chance of rain 40%. |
| Fri Hi: 75°FHi: 24°C Lo: 61°F Lo: 16°C |
Friday... Cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. East winds 5 to 10 mph. Chance of rain 50%. |
| Sat Hi: 80°FHi: 27°C Lo: 61°F Lo: 16°C |
Saturday... Cloudy in the morning, then becoming partly cloudy. A slight chance of showers and thunderstorms. Highs around 80. |
Sun Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Sunday... Mostly cloudy. Highs in the lower 80s. |
| Mon Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Monday... Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. |
Tue Hi: 79°FHi: 26°C |
Tuesday... Mostly cloudy in the morning, then becoming partly cloudy. A 50% chance of showers. Highs in the upper 70s. |
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