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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: 2:40 pm CST Jan 17, 2026 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday M.L.King Day Tuesday Wednesday Thursday Friday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Sunday Sunny on M.L.King Day Mostly Cloudy on Tuesday 30% chance of rain on Wednesday Mostly Sunny on Thursday Mostly Cloudy on Friday
High: 56°F Low: 29°F High: 61°F High: 65°F High: 58°F High: 64°F High: 64°F High: 68°F
Low: 33°F Low: 39°F Low: 50°F Low: 49°F Low: 45°F  
Sunny Mostly Clear Sunny Sunny Mostly Cloudy Rain Mostly Sunny Mostly Cloudy
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Current Conditions at
SAN MARCOS - (KHYI)
57°
Clear
as of 1:56 PM CST
Rel. Humidity: 15%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
26 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
NEW BRAUNFELS - (KBAZ)
55°
Clear
as of 1:51 PM CST
Rel. Humidity: 13%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
25 MPH
Gust: 32 MPH
020° North
Cloud Level(s): Clear
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
55°
Mostly Clear
as of 1:53 PM CST
Rel. Humidity: 16%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 32 MPH
010° North
Cloud Level(s): Few at 30000ft
Current Conditions at
RANDOLPH AFB - (KRND)
57°
Clear
as of 1:55 PM CST
Rel. Humidity: 9%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
15 MPH
040° Northeast
Cloud Level(s): Clear
Sunny on This Afternoon This Afternoon... Sunny, with a high near 56. North northeast wind around 15 mph, with gusts as high as 30 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 29. North northeast wind 10 to 15 mph becoming north northwest 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

Sunny on Sunday Sunday... Sunny, with a high near 61. Northwest wind around 5 mph becoming south southwest in the afternoon.

Clear on Sunday Night Sunday Night... Clear, with a low around 33. Southwest wind around 5 mph.

Sunny on M.L.King Day M.L.King Day... Sunny, with a high near 65. West southwest wind around 5 mph becoming east in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 39. Northeast wind around 5 mph.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 58. North northeast wind around 5 mph becoming east southeast in the afternoon.

20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of showers after midnight. Cloudy, with a low around 50. South southeast wind around 5 mph.

30% chance of rain Wednesday Wednesday... A 30 percent chance of showers. Mostly cloudy, with a high near 64. South wind around 5 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 49.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 64.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 45.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 68.

Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:28 AM
Sunset: 5:56 PM
Civil Sunrise:07:02 AM
Civil Sunset: 6:22 PM
Nautical Sunrise: 06:33 AM
Nautical Sunset: 6:51 PM
Astro Sunrise: 06:04 AM
Astro Sunset: 7:20 PM
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