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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: 7:42 pm CST Dec 7, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Clear on Tonight Sunny on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thursday Sunny on Friday Mostly Sunny on Saturday Partly Sunny on Sunday
Low: 40°F High: 62°F High: 67°F High: 75°F High: 79°F High: 66°F High: 55°F High: 59°F
Low: 37°F Low: 47°F Low: 48°F Low: 48°F Low: 40°F Low: 40°F  
Clear Sunny Sunny Sunny Sunny Sunny Mostly Sunny Partly Sunny
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Current Conditions at
SAN MARCOS - (KHYI)
52°
Clear
as of 9:56 PM CST
Rel. Humidity: 71%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
13 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
NEW BRAUNFELS - (KBAZ)
50°
Feels like 46°F
Clear
as of 9:51 PM CST
Rel. Humidity: 76%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
9 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
46°
Feels like 41°F
Clear
as of 9:53 PM CST
Rel. Humidity: 81%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
9 MPH
0° North
Cloud Level(s): Clear
Current Conditions at
RANDOLPH AFB - (KRND)
54°
Clear
as of 9:55 PM CST
Rel. Humidity: 62%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
5 MPH
020° North
Cloud Level(s): Clear
Clear on Tonight Tonight... Clear, with a low around 40. North wind 10 to 15 mph, with gusts as high as 25 mph.

Sunny on Monday Monday... Sunny, with a high near 62. North wind 5 to 10 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.

Clear on Monday Night Monday Night... Clear, with a low around 37. East northeast wind around 5 mph becoming calm.

Sunny on Tuesday Tuesday... Sunny, with a high near 67. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 47. South southwest wind 5 to 10 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 75. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 48. South wind around 5 mph becoming northwest after midnight.

Sunny on Thursday Thursday... Sunny, with a high near 79. West wind around 5 mph becoming south southwest in the afternoon.

Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 48. South wind 5 to 10 mph becoming north after midnight.

Sunny on Friday Friday... Sunny, with a high near 66.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 40.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 55.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 40.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 59.

Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:15 AM
Sunset: 5:32 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:58 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 6:28 PM
Astro Sunrise: 05:50 AM
Astro Sunset: 6:57 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.