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San Marcos, Texas Weather Forecast
San Marcos, Texas Weather
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Weather Forecast for San Marcos, Texas : Hays County
Issued: 12:44 pm CST Dec 30, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday New Year's Day Friday Saturday Sunday Monday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Wednesday Mostly Sunny on New Year's Day Sunny on Friday Sunny on Saturday Sunny on Sunday Partly Sunny on Monday
High: 58°F Low: 32°F High: 68°F High: 73°F High: 84°F High: 74°F High: 76°F High: 77°F
Low: 43°F Low: 55°F Low: 51°F Low: 48°F Low: 56°F  
Sunny Mostly Clear Sunny Mostly Sunny Sunny Sunny Sunny Partly Sunny
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Sunny on This Afternoon This Afternoon... Sunny, with a high near 58. North wind around 5 mph becoming calm.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 32. Calm wind becoming west around 5 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 68. Southwest wind around 5 mph.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 43. Southwest wind around 5 mph.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 73. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 55. South southwest wind around 10 mph.

Sunny on Friday Friday... Sunny, with a high near 84. West wind 5 to 10 mph, with gusts as high as 20 mph.

Clear on Friday Night Friday Night... Clear, with a low around 51. West wind around 5 mph becoming north after midnight.

Sunny on Saturday Saturday... Sunny, with a high near 74. North wind around 5 mph.

Clear on Saturday Night Saturday Night... Clear, with a low around 48.

Sunny on Sunday Sunday... Sunny, with a high near 76.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 56.

Partly Sunny on Monday Monday... Partly sunny, with a high near 77.

Sun Almanac for San Marcos, Texas
Sunrise: 07:27 AM
Sunset: 5:42 PM
Civil Sunrise:07:01 AM
Civil Sunset: 6:08 PM
Nautical Sunrise: 06:31 AM
Nautical Sunset: 6:38 PM
Astro Sunrise: 06:02 AM
Astro Sunset: 7:07 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.