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Weather in San Marcos, Texas, USA

Now
51 °F

Clear.


Feels Like: 47 °F
Forecast: 68 / 40 °F
Wind: 10 mph ↑ from North

Location: San Marcos Municipal Airport
Current Time: Dec 19, 2025 at 1:52:08 am
Latest Report: Dec 19, 2025 at 12:56 am
Visibility: 10 mi
Pressure: 30.14 "Hg
Humidity: 44%
Dew Point: 30 °F
Location of San Marcos Location

Upcoming 5 hours

Now 2:00 am 3:00 am 4:00 am 5:00 am 6:00 am
51 °F 49 °F 47 °F 46 °F 44 °F 43 °F

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Forecast for the next 48 hours

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  Friday Saturday
  Night Morning Afternoon Evening Night Morning Afternoon
Forecast
Temperature 47 °F 47 °F 67 °F 52 °F 46 °F 54 °F 76 °F
Clear. Sunny. Sunny. Clear. Clear. Partly cloudy. Sunny.
Feels Like 44 °F 45 °F 67 °F 49 °F 42 °F 50 °F 78 °F
Wind Speed 8 mph 4 mph 12 mph 9 mph 9 mph 13 mph 16 mph
Wind Direction N
↑ 		E
↑ 		S
↑ 		S
↑ 		SSW
↑ 		SSW
↑ 		SSW
↑
Humidity 51% 50% 20% 48% 87% 96% 54%
Dew Point 30 °F 29 °F 25 °F 33 °F 43 °F 53 °F 58 °F
Visibility 6 mi 6 mi 8 mi 6 mi 5 mi 7 mi 9 mi
Probability of Precipitation 0% 0% 0% 0% 0% 0% 0%
Amount of Rain 0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
Amount of Snow 0.00" 0.00" 0.00" 0.00" 0.00" 0.00" 0.00"
* Updated Thursday, December 18, 2025 7:42:36 pm San Marcos time - Weather by CustomWeather, © 2025

14 day forecast, day-by-day Hour-by-hour forecast for next week

Yesterday's weather

Clear. 79 / 54 °F
Humidity: 70%. Wind: 12 mph ↑ from Southwest

More weather last week

Currently at nearby stations

49 °F

New Braunfels Municipal Airport: (14 mi)

Clear. (1 hour ago)

53 °F

Austin-Bergstrom International Airport: (27 mi)

Clear.

54 °F

Randolph Air Force Base: (32 mi)

Clear.

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Forecast for the next 2 weeks

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Sun Mon Tue Wed Thu Fri Sat
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18

View historic weather

3

Detailed forecast for 14 days

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