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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: 12:24 am CST Nov 28, 2025 Latitude: 29.8832749 Longitude: -97.9413941 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Cloudy on Overnight 20% chance of rain on Friday 30% chance of thunderstorms on Saturday Mostly Cloudy on Sunday 20% chance of rain on Monday Sunny on Tuesday Partly Sunny on Wednesday 30% chance of rain on Thursday
Low: 50°F High: 66°F High: 76°F High: 51°F High: 50°F High: 56°F High: 64°F High: 62°F
Low: 59°F Low: 42°F Low: 37°F Low: 33°F Low: 38°F Low: 51°F  
Mostly Cloudy Rain Thunderstorms Mostly Cloudy Rain Sunny Partly Sunny Rain
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Current Conditions at
SAN MARCOS - (KHYI)
52°
Mostly Clear
as of 11:56 PM CST
Rel. Humidity: 57%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.39 in.
Flight Rule: VFR
Wind Data
7 MPH
050° Northeast
Cloud Level(s): Few at 7500ft
Current Conditions at
NEW BRAUNFELS - (KBAZ)
54°
Mostly Cloudy
as of 11:51 PM CST
Rel. Humidity: 54%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 30.37 in.
Flight Rule: VFR
Wind Data
5 MPH
080° East
Cloud Level(s): Scattered at 5500ft, Broken at 7500ft
Current Conditions at
AUSTIN/BERGSTROM - (KAUS)
48°
Mostly Cloudy
as of 11:53 PM CST
Rel. Humidity: 76%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 30.39 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 7500ft
Current Conditions at
RANDOLPH AFB - (KRND)
55°
Mostly Cloudy
as of 11:55 PM CST
Rel. Humidity: 47%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.36 in.
Flight Rule: VFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Broken at 7000ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 50. Calm wind becoming east around 5 mph.
20% chance of rain Friday Friday... A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 66. East wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 25 mph.
70% chance of rain Friday Night Friday Night... Showers likely, mainly between 9pm and 3am. Cloudy, with a low around 59. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
30% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
40% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 42. West southwest wind 5 to 10 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 40%.
Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 51. North northeast wind 15 to 20 mph, with gusts as high as 35 mph.
20% chance of rain Sunday Night Sunday Night... A 20 percent chance of showers after midnight. Cloudy, with a low around 37. North northeast wind around 10 mph, with gusts as high as 25 mph.
20% chance of rain Monday Monday... A 20 percent chance of showers before noon. Cloudy, with a high near 50. North northeast wind 5 to 10 mph.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 33. North wind around 5 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 56.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 38.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 64.
30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of showers. Mostly cloudy, with a low around 51.
30% chance of rain Thursday Thursday... A 30 percent chance of showers. Cloudy, with a high near 62.
Current Radar Image


Sun Almanac for San Marcos, Texas
Sunrise: 07:08 AM
Sunset: 5:32 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:58 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 6:27 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:56 PM
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