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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: 11:44 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
20% chance of thunderstorms on Today 30% chance of rain on Tonight 70% chance of thunderstorms on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thanksgiving Day Mostly Cloudy on Friday 40% chance of thunderstorms on Saturday
High: 72°F Low: 66°F High: 80°F High: 79°F High: 65°F High: 68°F High: 72°F High: 74°F
Low: 54°F Low: 51°F Low: 42°F Low: 48°F Low: 61°F  
Thunderstorms Rain Thunderstorms Sunny Sunny Sunny Mostly Cloudy Thunderstorms
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Current Conditions at
SAN MARCOS - (KHYI)
63°
Cloudy
as of 10:56 AM CST
Rel. Humidity: 67%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: MVFR
Wind Data
10 MPH
070° East
Cloud Level(s): Solid Overcast at 2400ft
Current Conditions at
NEW BRAUNFELS - (KBAZ)
61°
Cloudy
as of 10:51 AM CST
Rel. Humidity: 67%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: MVFR
Wind Data
12 MPH
070° East
Cloud Level(s): Solid Overcast at 2200ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
63°
Cloudy
as of 10:53 AM CST
Rel. Humidity: 67%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 17 MPH
070° East
Cloud Level(s): Few at 3100ft, Solid Overcast at 5000ft
Current Conditions at
RANDOLPH AFB - (KRND)
63°
Cloudy
Light Rain
as of 11:23 AM CST
Rel. Humidity: 67%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: MVFR
Wind Data
9 MPH
070° East
Cloud Level(s): Solid Overcast at 2200ft
20% chance of thunderstorms Today Today... A 20 percent chance of showers and thunderstorms before noon. Cloudy, with a high near 72. East southeast wind 5 to 10 mph.
30% chance of rain Tonight Tonight... A 30 percent chance of showers, mainly after 3am. Cloudy, with a low around 66. East southeast wind 5 to 10 mph.
70% chance of thunderstorms Monday Monday... A chance of showers, then showers likely and possibly a thunderstorm after noon. Cloudy, then gradually becoming mostly sunny, 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 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
30% chance of thunderstorms Monday Night Monday Night... A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunny on Tuesday Tuesday... Sunny, with a high near 79. Northwest wind around 5 mph becoming northeast in the afternoon.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 51. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 65. North northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 42. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny on Thanksgiving Day Thanksgiving Day... Sunny, with a high near 68. North northeast wind around 5 mph becoming east southeast in the afternoon.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 48.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 72.
30% chance of thunderstorms Friday Night Friday Night... A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 61.
40% chance of thunderstorms Saturday Saturday... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
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.