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San Marcos, Texas Weather Forecast
San Marcos, Texas Weather
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Click for Wind Advisory for San Marcos, Texas
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Weather Forecast for San Marcos, Texas : Hays County
Issued: 11:28 pm CST Dec 28, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday New Year's Day Friday Saturday Sunday
Mostly Cloudy on Tonight Mostly Cloudy on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on New Year's Day Sunny on Friday Sunny on Saturday Sunny on Sunday
Low: 43°F High: 49°F High: 57°F High: 66°F High: 72°F High: 83°F High: 78°F High: 74°F
Low: 39°F Low: 36°F Low: 43°F Low: 55°F Low: 53°F Low: 48°F  
Mostly Cloudy Mostly Cloudy Mostly Sunny Mostly Sunny Partly Sunny Sunny Sunny Sunny
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Current Conditions at
SAN MARCOS - (KHYI)
57°
Clear
as of 10:56 PM CST
Rel. Humidity: 50%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: VFR
Wind Data
25 MPH
Gust: 33 MPH
0° North
Cloud Level(s): Clear
Current Conditions at
NEW BRAUNFELS - (KBAZ)
61°
Partly Cloudy
as of 10:51 PM CST
Rel. Humidity: 41%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
25 MPH
Gust: 41 MPH
010° North
Cloud Level(s): Scattered at 3600ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
54°
Partly Cloudy
as of 10:53 PM CST
Rel. Humidity: 43%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
31 MPH
Gust: 40 MPH
010° North
Cloud Level(s): Few at 5500ft, Scattered at 20000ft
Current Conditions at
RANDOLPH AFB - (KRND)
59°
Mostly Cloudy
as of 11:20 PM CST
Rel. Humidity: 41%
Dew Point: 36°F
Visibility: 9 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 35 MPH
010° North
Cloud Level(s): Broken at 3500ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 43. Breezy, with a north northeast wind 20 to 25 mph, with gusts as high as 40 mph.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 49. Breezy, with a north northeast wind 15 to 25 mph, with gusts as high as 40 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 39. North wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 57. North wind 5 to 10 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 36. Calm wind becoming west around 5 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 66. Southwest wind around 5 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 43. Southwest wind around 5 mph.
Partly Sunny on New Year's Day New Year's Day... Partly sunny, with a high near 72. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 55. South southwest wind 5 to 10 mph.
Sunny on Friday Friday... Sunny, with a high near 83.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 53.
Sunny on Saturday Saturday... Sunny, with a high near 78.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 48.
Sunny on Sunday Sunday... Sunny, with a high near 74.
Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:27 AM
Sunset: 5:41 PM
Civil Sunrise:07:00 AM
Civil Sunset: 6:08 PM
Nautical Sunrise: 06:31 AM
Nautical Sunset: 6:37 PM
Astro Sunrise: 06:01 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.