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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: 12:58 pm CST Nov 29, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday
20% chance of rain on This Afternoon 50% chance of thunderstorms on Tonight Cloudy on Sunday 50% chance of rain on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday 50% chance of rain on Thursday 20% chance of rain on Friday
High: 76°F Low: 44°F High: 48°F High: 48°F High: 58°F High: 63°F High: 59°F High: 64°F
Low: 40°F Low: 40°F Low: 39°F Low: 51°F Low: 46°F  
Rain Thunderstorms Cloudy Rain Mostly Sunny Mostly Cloudy Rain Rain
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Current Conditions at
SAN MARCOS - (KHYI)
77°
Cloudy
as of 12:56 PM CST
Rel. Humidity: 65%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
15 MPH
200° South
Cloud Level(s): Broken at 3300ft, Broken at 4100ft, Solid Overcast at 6000ft
Current Conditions at
NEW BRAUNFELS - (KBAZ)
75°
Mostly Cloudy
as of 12:51 PM CST
Rel. Humidity: 64%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 25 MPH
210° Southwest
Cloud Level(s): Scattered at 3100ft, Broken at 3900ft, Broken at 5500ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
75°
Cloudy
as of 12:53 PM CST
Rel. Humidity: 69%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: MVFR
Wind Data
10 MPH
200° South
Cloud Level(s): Broken at 2500ft, Solid Overcast at 3400ft
Current Conditions at
RANDOLPH AFB - (KRND)
79°
Partly Cloudy
as of 1:00 PM CST
Rel. Humidity: 57%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 25 MPH
200° South
Cloud Level(s): Scattered at 2900ft, Scattered at 6000ft
20% chance of rain This Afternoon This Afternoon... A 20 percent chance of showers. Mostly sunny, with a high near 76. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
50% chance of thunderstorms Tonight Tonight... A 50 percent chance of showers and thunderstorms, mainly between 9pm and 3am. Increasing clouds, with a low around 44. Southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 35 mph. New rainfall amounts between a quarter and half of an inch possible.
Cloudy on Sunday Sunday... Cloudy, with a high near 48. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.
30% chance of thunderstorms Sunday Night Sunday Night... A slight chance of showers, then a chance of showers and thunderstorms after 9pm. Cloudy, with a low around 40. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
50% chance of rain Monday Monday... A 50 percent chance of showers. Cloudy, with a high near 48. North northeast wind 5 to 10 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 40. 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 in the afternoon. Winds could gust as high as 20 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 39. East wind around 5 mph becoming calm.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 63. South wind around 5 mph.
40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of showers. Cloudy, with a low around 51.
50% chance of rain Thursday Thursday... A 50 percent chance of showers. Cloudy, with a high near 59.
40% chance of thunderstorms Thursday Night Thursday Night... A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 46.
20% chance of rain Friday Friday... A 20 percent chance of showers. Mostly cloudy, with a high near 64.
Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:09 AM
Sunset: 5:32 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:58 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 6:27 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:56 PM
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