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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: 3:54 am CST Dec 1, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
30% chance of rain on Overnight 30% chance of rain on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday 50% chance of thunderstorms on Thursday 20% chance of rain on Friday Mostly Sunny on Saturday Sunny on Sunday
Low: 41°F High: 52°F High: 58°F High: 64°F High: 54°F High: 57°F High: 68°F High: 71°F
Low: 36°F Low: 41°F Low: 49°F Low: 42°F Low: 44°F Low: 47°F  
Rain Rain Mostly Sunny Mostly Cloudy Thunderstorms Rain Mostly Sunny Sunny
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Current Conditions at
SAN MARCOS - (KHYI)
43°
Feels like 36°F
Cloudy
as of 3:56 AM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: MVFR
Wind Data
12 MPH
020° North
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
NEW BRAUNFELS - (KBAZ)
43°
Feels like 36°F
Cloudy
as of 3:51 AM CST
Rel. Humidity: 65%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: MVFR
Wind Data
10 MPH
040° Northeast
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
43°
Feels like 37°F
Cloudy
as of 3:53 AM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: MVFR
Wind Data
9 MPH
020° North
Cloud Level(s): Solid Overcast at 2300ft
Current Conditions at
RANDOLPH AFB - (KRND)
46°
Cloudy
as of 3:55 AM CST
Rel. Humidity: 52%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: MVFR
Wind Data
7 MPH
030° Northeast
Cloud Level(s): Solid Overcast at 2300ft
30% chance of rain Overnight Overnight... A 30 percent chance of showers. Cloudy, with a low around 41. North northeast wind 5 to 10 mph.
30% chance of rain Monday Monday... A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 52. North northeast wind around 5 mph.
Clearing on Monday Night Monday Night... Cloudy during the early evening, then gradual clearing, with a low around 36. North wind 5 to 10 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 58. North wind 5 to 10 mph becoming east southeast in the afternoon.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 41. South wind around 5 mph.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 64. South wind around 5 mph.
30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Cloudy, with a low around 49. Light and variable wind becoming north 5 to 10 mph after midnight. Chance of precipitation is 30%.
50% chance of thunderstorms Thursday Thursday... A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 54. North wind 10 to 15 mph, with gusts as high as 25 mph.
50% chance of rain Thursday Night Thursday Night... A 50 percent chance of showers. Cloudy, with a low around 42. North wind 5 to 10 mph, with gusts as high as 20 mph.
20% chance of rain Friday Friday... A 20 percent chance of showers before noon. Mostly cloudy, with a high near 57.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 44.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 68.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 47.
Sunny on Sunday Sunday... Sunny, with a high near 71.
Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:10 AM
Sunset: 5:32 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:58 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 6:27 PM
Astro Sunrise: 05:46 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.