San Marcos, Texas Weather
No Watches or Warnings for San Marcos
Issued: 6:44 pm CST Nov 21, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps
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Mostly Sunny |
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Current Conditions at
SAN MARCOS - (KHYI)
72°
Clear
as of 5:56 PM CST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
NEW BRAUNFELS - (KBAZ)
70°
Partly Cloudy
as of 5:51 PM CST
Rel. Humidity: 73%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Cloud Level(s): Scattered at 11000ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
72°
Mostly Clear
as of 5:53 PM CST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
3 MPH
300° Northwest
Cloud Level(s): Few at 3000ft
Current Conditions at
RANDOLPH AFB - (KRND)
72°
Mostly Clear
as of 5:55 PM CST
Rel. Humidity: 78%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Cloud Level(s): Few at 6500ft
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Tonight... A slight chance of showers and thunderstorms between midnight and 3am, then a slight chance of showers after 3am. Patchy fog after 4am. Otherwise, partly cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%. |
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Saturday... Mostly sunny, with a high near 75. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. |
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Saturday Night... Increasing clouds, with a low around 58. Northeast wind around 5 mph. |
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Sunday... A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Cloudy, with a high near 73. Northeast wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%. |
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Sunday Night... A 30 percent chance of showers, mainly after midnight. Cloudy, with a low around 66. Southeast wind 5 to 10 mph. |
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Monday... Showers and possibly a thunderstorm. High near 77. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. |
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Monday Night... A 20 percent chance of showers before midnight. Mostly clear, with a low around 54. West northwest wind around 5 mph becoming calm in the evening. |
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Tuesday... Sunny, with a high near 78. North northwest wind around 5 mph. |
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Tuesday Night... Partly cloudy, with a low around 50. North wind 5 to 10 mph. |
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Wednesday... Mostly sunny, with a high near 66. |
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Wednesday Night... Partly cloudy, with a low around 44. |
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Thanksgiving Day... Mostly sunny, with a high near 67. |
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Thursday Night... Partly cloudy, with a low around 47. |
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Friday... Mostly sunny, with a high near 69. |
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Current Radar Image
Sun Almanac for San Marcos, Texas
Sunrise: 07:02 AM
Sunset: 5:33 PM
Civil Sunrise:06:37 AM
Civil Sunset: 5:59 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 6:28 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:57 PM
Texas' Current Temperatures
Texas' Satellite Image
Texas' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 7027 locations in the contiguous United States |
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High Temp |
84° |
Mcallen, Texas
and 1 other location
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Low Temp |
21° |
Manitowish Water, Wisconsin
and 1 other location
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Wind Speed |
36mph |
Sandburg, California
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Wind Gust |
58mph |
Sandburg, California
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Wind Chill |
5° |
Berthoud Pass, Colorado
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High Pressure |
30.32Hg |
Salida Mountain, Colorado
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Low Pressure |
29.72Hg |
Frenchville, Maine
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| # Locations Reporting Snow |
2 |
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| # Locations Reporting Rain |
110 |
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| # Locations Reporting Thunderstorms / Lightning |
3 |
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| # Locations Reporting Fog |
23 |
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| Average Temperature in the Contiguous USA |
53° |
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National Weather Service for official information.