San Marcos Weather Today

Temperature, Feels Like, Rain Chance & Hourly Forecast in San Marcos

San Marcos temperature today is 18°, feels like 18°, with humidity at 88% and wind at 20.38 km/h. Rain chance today is 97%. Use the hourly forecast and 5-day outlook below to plan your day.

overcast clouds
18°
overcast clouds
H: 19° L: 17°
Feels like 18°
AQI: (/5)
Humidity
88%
Dew 16°
Wind speed
20.38 km/h
NNE
Pressure
1013 hPa
Visibility
10 km
High Winds
Wind speed is 20.38 km/h. Secure loose objects.
High Humidity
Humidity is 88%. May feel uncomfortable.
Weather Summary
Currently in San Marcos, expect varied conditions with mild temperatures around 18°. Winds are moderate winds. High humidity may make it feel uncomfortable.
Precipitation Probability
97%
01
100%
04
100%
07
0%
10
0%
13
0%
16
0%
19
35%
22
100%
01
100%
04
100%
07
100%
10
100%
13
100%
16
100%
19
0%
22
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
19°
Thu
01:00
19°
 
19°
 
18°
 
20°
Thu
13:00
22°
 
21°
 
21°
 
17°
Fri
01:00
16°
 
16°
 
16°
 
15°
Fri
13:00
14°
 
13°
 
12°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:49
Sunset
Sunset
20:07
Moon Phase
Waxing Gibbous (97%)
Timezone: GMT+05:30
Last updated: Apr 30, 2026 5:30 AM · Data refreshes every 5 min
Location Info
Latitude
Latitude
29.883270
Longitude
Longitude
-97.941391
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More about San Marcos
Content curated by the NearWeather editorial team · Updated periodically
San Marcos is located in central Texas in the United States of America. It is a city located between Austin and San Antonio, and is home to Texas State University. The climate in San Marcos is generally mild, with hot summers and mild winters. The average temperature year round is around 70-80 degrees Fahrenheit (21-27 degrees Celsius). Rainfall is abundant, with a yearly average of around 30-35 inches (76-89 cm).
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about San Marcos
What is the Latitude and Longitude of San Marcos?

San Marcos's Latitude is 29.883270 & Longitude is -97.941391.

What is the weather in San Marcos today?

Weather in San Marcos is 18° today.

What is the climatic condition of San Marcos today?

Climate Conditions in San Marcos shows overcast clouds today.

What is the humidity in San Marcos today?

Humidity in San Marcos is 88% today.

What is the wind speed in San Marcos today?

Wind speed in San Marcos is 20.38 km/h, flowing at 20° NNE wind direction.

What does it feel like in San Marcos today?

It feels like 18° in San Marcos today, with 100% cloud cover and 10 km visibility.

Weather in San Marcos