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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: 2:32 pm CST Dec 14, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Partly Sunny on This Afternoon Cloudy on Tonight Mostly Sunny on Monday Cloudy on Tuesday 20% chance of rain on Wednesday Mostly Sunny on Thursday Sunny on Friday Mostly Sunny on Saturday
High: 47°F Low: 31°F High: 56°F High: 60°F High: 72°F High: 80°F High: 69°F High: 76°F
Low: 42°F Low: 54°F Low: 60°F Low: 47°F Low: 53°F  
Partly Sunny Cloudy Mostly Sunny Cloudy Rain Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
NEW BRAUNFELS - (KBAZ)
48°
Feels like 41°F
Cloudy
as of 2:31 PM CST
Rel. Humidity: 57%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.45 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 25 MPH
010° North
Cloud Level(s): Solid Overcast at 2900ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
45°
Feels like 36°F
Cloudy
as of 2:18 PM CST
Rel. Humidity: 52%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.50 in.
Flight Rule: MVFR
Wind Data
22 MPH
010° North
Cloud Level(s): Solid Overcast at 2600ft
Partly Sunny on This Afternoon This Afternoon... Partly sunny, with a steady temperature around 47. North northeast wind around 15 mph, with gusts as high as 30 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 31. North northeast wind 5 to 10 mph, with gusts as high as 25 mph.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 56. North wind around 5 mph becoming calm in the morning.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 42. South southeast wind around 5 mph becoming calm.

Cloudy on Tuesday Tuesday... Cloudy, with a high near 60. Calm wind becoming south around 5 mph in the morning.

30% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms before 3am, then a slight chance of showers. Cloudy, with a low around 54. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

20% chance of rain Wednesday Wednesday... A 20 percent chance of showers before noon. Mostly cloudy, with a high near 72. Calm wind becoming south southwest around 5 mph in the morning.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 60. South wind around 5 mph.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 80. South southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 47.

Sunny on Friday Friday... Sunny, with a high near 69.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 53.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 76.

Sun Almanac for San Marcos, Texas
Sunrise: 07:20 AM
Sunset: 5:34 PM
Civil Sunrise:06:53 AM
Civil Sunset: 6:00 PM
Nautical Sunrise: 06:23 AM
Nautical Sunset: 6:30 PM
Astro Sunrise: 05:54 AM
Astro Sunset: 6:59 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.