San Marcos, Texas Weather
No Watches or Warnings for San Marcos
Issued: 5:42 am CDT Jun 18, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps
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Mostly Cloudy |
Increasing Clouds |
Mostly Cloudy |
Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
Thunderstorms |
Current Conditions at
SAN MARCOS - (KHYI)
77°
Clear
as of 6:56 AM CDST
Rel. Humidity: 100%
Dew Point: 77°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
NEW BRAUNFELS - (KBAZ)
75°
Clear
as of 6:51 AM CDST
Rel. Humidity: 94%
Dew Point: 73°F
Visibility: 9 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
79°
Partly Cloudy
as of 6:53 AM CDST
Rel. Humidity: 88%
Dew Point: 75°F
Visibility: 9 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
5 MPH
150° Southeast
Cloud Level(s): Few at 2300ft, Scattered at 2800ft
Current Conditions at
RANDOLPH AFB - (KRND)
75°
Clear
as of 6:55 AM CDST
Rel. Humidity: 88%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Clear
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Today... Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 100. South wind 10 to 15 mph, with gusts as high as 25 mph. |
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Tonight... Increasing clouds, with a low around 77. South southeast wind 5 to 15 mph, with gusts as high as 25 mph. |
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Juneteenth... Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 102. South southeast wind 5 to 10 mph. |
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Thursday Night... Partly cloudy, with a low around 75. South southeast wind 5 to 10 mph. |
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Friday... Mostly sunny, with a high near 94. South wind 5 to 10 mph, with gusts as high as 20 mph. |
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Friday Night... Partly cloudy, with a low around 73. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. |
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Saturday... Mostly sunny, with a high near 94. South wind 5 to 15 mph, with gusts as high as 25 mph. |
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Saturday Night... Partly cloudy, with a low around 73. South southeast wind 5 to 15 mph, with gusts as high as 25 mph. |
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Sunday... Mostly sunny, with a high near 94. South southeast wind 5 to 15 mph, with gusts as high as 25 mph. |
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Sunday Night... Partly cloudy, with a low around 72. |
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Monday... Mostly sunny, with a high near 94. |
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Monday Night... Partly cloudy, with a low around 73. |
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Tuesday... A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. |
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Current Radar Image
Sun Almanac for San Marcos, Texas
Sunrise: 06:31 AM
Sunset: 8:35 PM
Civil Sunrise:06:04 AM
Civil Sunset: 9:02 PM
Nautical Sunrise: 05:30 AM
Nautical Sunset: 9:36 PM
Astro Sunrise: 04:55 AM
Astro Sunset: 10:11 PM
Texas' Current Temperatures
Texas' Satellite Image
Texas' Current Wind Direction
National Summary |
of upper and lower values of current conditions amongst 7149 locations in the contiguous United States |
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High Temp |
86° |
Viosca Knoll768, Alabama
and 5 other locations
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Low Temp |
34° |
Afton, Wyoming
and 1 other location
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Wind Speed |
79mph |
Bellefontaine, Ohio
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Wind Gust |
39mph |
Carlsbad, New Mexico
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Wind Chill |
34° |
Dubois Municipal, Wyoming
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Heat Index |
102° |
Orange, Texas
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High Pressure |
30.62Hg |
Salida Mountain, Colorado
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Low Pressure |
29.64Hg |
Thermal, California
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# Locations Reporting Rain |
83 |
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# Locations Reporting Thunderstorms / Lightning |
7 |
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# Locations Reporting Fog |
44 |
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Average Temperature in the Contiguous USA |
67° |
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National Weather Service for official information.