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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: 6:42 pm CST Nov 17, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Increasing Clouds on Tonight Partly Sunny on Tuesday 40% chance of thunderstorms on Wednesday 70% chance of thunderstorms on Thursday 30% chance of rain on Friday 20% chance of rain on Saturday 30% chance of on Sunday 30% chance of rain on Monday
Low: 70°F High: 85°F High: 85°F High: 77°F High: 80°F High: 74°F High: 71°F High: 73°F
Low: 69°F Low: 69°F Low: 63°F Low: 56°F Low: 53°F Low: 54°F  
Increasing Clouds Partly Sunny Thunderstorms Thunderstorms Rain Rain Partly Sunny Rain
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Current Conditions at
SAN MARCOS - (KHYI)
81°
Clear
as of 6:56 PM CST
Rel. Humidity: 69%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
15 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
NEW BRAUNFELS - (KBAZ)
81°
Clear
as of 6:51 PM CST
Rel. Humidity: 65%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 29 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
81°
Mostly Cloudy
as of 6:53 PM CST
Rel. Humidity: 61%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
8 MPH
160° South
Cloud Level(s): Broken at 5000ft
Current Conditions at
RANDOLPH AFB - (KRND)
81°
Clear
as of 6:55 PM CST
Rel. Humidity: 65%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
10 MPH
160° South
Cloud Level(s): Clear
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 70. South wind around 10 mph, with gusts as high as 20 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 85. South wind 5 to 10 mph, with gusts as high as 20 mph.
Morning Fog on Tuesday Night Tuesday Night... Patchy fog after 5am. Otherwise, increasing clouds, with a low around 69. South wind around 5 mph.
40% chance of thunderstorms Wednesday Wednesday... A chance of showers, with thunderstorms also possible after noon. Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 85. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
40% chance of thunderstorms Wednesday Night Wednesday Night... A 40 percent chance of showers and thunderstorms. Patchy fog after 5am. Otherwise, cloudy, with a low around 69. South southeast wind around 10 mph.
70% chance of thunderstorms Thursday Thursday... Showers likely and possibly a thunderstorm. Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 77. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
70% chance of thunderstorms Thursday Night Thursday Night... Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. South southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 70%.
30% chance of rain Friday Friday... A 30 percent chance of showers before noon. Mostly sunny, with a high near 80. Northwest wind around 5 mph.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 56. North wind around 5 mph.
20% chance of rain Saturday Saturday... A 20 percent chance of showers. Mostly sunny, with a high near 74.
30% chance of rain Saturday Night Saturday Night... A 30 percent chance of showers. Partly cloudy, with a low around 53.
30% chance of Sunday Sunday... A 30 percent chance of showers. Partly sunny, with a high near 71.
30% chance of rain Sunday Night Sunday Night... A 30 percent chance of showers. Mostly cloudy, with a low around 54.
30% chance of rain Monday Monday... A 30 percent chance of showers. Mostly sunny, with a high near 73.
Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 06:59 AM
Sunset: 5:35 PM
Civil Sunrise:06:33 AM
Civil Sunset: 6:00 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 6:29 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:58 PM
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