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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: 4:32 am CST Nov 23, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thanksgiving Day Friday Saturday
Mostly Cloudy on Today 20% chance of rain on Tonight 50% chance of thunderstorms on Monday Sunny on Tuesday Mostly Sunny on Wednesday Sunny on Thanksgiving Day Partly Sunny on Friday 40% chance of thunderstorms on Saturday
High: 72°F Low: 67°F High: 80°F High: 79°F High: 66°F High: 67°F High: 71°F High: 72°F
Low: 55°F Low: 52°F Low: 41°F Low: 47°F Low: 60°F  
Mostly Cloudy Rain Thunderstorms Sunny Mostly Sunny Sunny Partly Sunny Thunderstorms
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Current Conditions at
SAN MARCOS - (KHYI)
59°
Mostly Cloudy
as of 3:56 AM CST
Rel. Humidity: 82%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
8 MPH
040° Northeast
Cloud Level(s): Broken at 10000ft
Current Conditions at
NEW BRAUNFELS - (KBAZ)
63°
Cloudy
as of 3:51 AM CST
Rel. Humidity: 67%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
10 MPH
040° Northeast
Cloud Level(s): Solid Overcast at 9500ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
57°
Mostly Clear
as of 3:53 AM CST
Rel. Humidity: 82%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
6 MPH
010° North
Cloud Level(s): Few at 5500ft
Current Conditions at
RANDOLPH AFB - (KRND)
64°
Mostly Cloudy
as of 4:40 AM CST
Rel. Humidity: 63%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
10 MPH
030° Northeast
Cloud Level(s): Scattered at 2800ft, Broken at 9000ft
Mostly Cloudy on Today Today... Mostly cloudy, with a high near 72. North northeast wind 5 to 10 mph becoming east southeast in the afternoon.
20% chance of rain Tonight Tonight... A 20 percent chance of showers after midnight. Cloudy, with a low around 67. Southeast wind 5 to 10 mph.
50% chance of thunderstorms Monday Monday... A chance of showers, with thunderstorms also possible after 9am. Mostly cloudy, with a high near 80. South wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
20% chance of thunderstorms Monday Night Monday Night... A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 55. West northwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Sunny on Tuesday Tuesday... Sunny, with a high near 79. Northwest wind around 5 mph becoming northeast in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 52. North wind 5 to 10 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 66. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 41. North wind 5 to 10 mph.
Sunny on Thanksgiving Day Thanksgiving Day... Sunny, with a high near 67. North northeast wind around 5 mph becoming east southeast in the afternoon.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 47.
Partly Sunny on Friday Friday... Partly sunny, with a high near 71.
20% chance of thunderstorms Friday Night Friday Night... A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
40% chance of thunderstorms Saturday Saturday... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 72.
Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:04 AM
Sunset: 5:33 PM
Civil Sunrise:06:38 AM
Civil Sunset: 5:59 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 6:28 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:56 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.