San Marcos, Texas Weather
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Weather Forecast for San Marcos, Texas : Hays County
Issued: 5:32 am CDT Jul 3, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Independence Day Saturday Sunday Monday Tuesday Wednesday
50% chance of thunderstorms on Today 20% chance of thunderstorms on Tonight Mostly Cloudy on Independence Day 20% chance of thunderstorms on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Sunny on Tuesday Sunny on Wednesday
High: 87°F Low: 75°F High: 90°F High: 91°F High: 94°F High: 95°F High: 96°F High: 98°F
Low: 74°F Low: 73°F Low: 73°F Low: 73°F Low: 74°F  
Thunderstorms Thunderstorms Mostly Cloudy Thunderstorms Mostly Sunny Mostly Sunny Sunny Sunny
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Current Conditions at
SAN MARCOS - (KHYI)
75°
Partly Cloudy
as of 5:19 AM CDST
Rel. Humidity: 100%
Dew Point: 75°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
5 MPH
150° Southeast
Cloud Level(s): Scattered at 1200ft
Current Conditions at
NEW BRAUNFELS - (KBAZ)
75°
Clear
as of 4:51 AM CDST
Rel. Humidity: 94%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
3 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
79°
Cloudy
as of 4:53 AM CDST
Rel. Humidity: 88%
Dew Point: 75°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Broken at 12000ft, Solid Overcast at 15000ft
50% chance of thunderstorms Today Today... A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly cloudy, with a high near 87. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts between a quarter and half of an inch possible.
20% chance of thunderstorms Tonight Tonight... A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 75. South wind 5 to 10 mph.
Mostly Cloudy on Independence Day Independence Day... Mostly cloudy, with a high near 90. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph.
20% chance of thunderstorms Saturday Saturday... A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 73. South southeast wind 5 to 10 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 94. Calm wind becoming south southeast around 5 mph in the afternoon.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming south southwest after midnight.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 95. Calm wind becoming south southeast around 5 mph in the afternoon.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 73.
Sunny on Tuesday Tuesday... Sunny, with a high near 96.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 74.
Sunny on Wednesday Wednesday... Sunny, with a high near 98.
Sun Almanac for San Marcos, Texas
Sunrise: 06:36 AM
Sunset: 8:37 PM
Civil Sunrise:06:08 AM
Civil Sunset: 9:04 PM
Nautical Sunrise: 05:35 AM
Nautical Sunset: 9:37 PM
Astro Sunrise: 05:00 AM
Astro Sunset: 10:12 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.