San Marcos Weather Today

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

San Marcos temperature today is 29°, feels like 34°, with a humidity level of 80% and wind at 6.26 km/h. Rain chance today is 2%. Use the hourly forecast and 5-day outlook below to plan your day.

Tomorrow in San Marcos: expect a high of 33° and a low of 25°, with light rain. Rain chance tomorrow is 100%.

overcast clouds
29°
overcast clouds
H: 29° L: 29°
Feels like 34°
AQI: Good (1/5)
Humidity
80%
Dew 25°
Wind speed
6.26 km/h
SW · G15.66
Pressure
1010 hPa
Visibility
10 km
Weather Summary
Currently in San Marcos, expect varied conditions with hot temperatures around 29°, though it feels warmer. Winds are a light breeze. Stay hydrated and seek shade during peak hours.
Precipitation Probability
2%
13
5%
16
36%
19
71%
22
36%
01
0%
04
0%
07
62%
10
30%
13
38%
16
100%
19
32%
22
94%
01
20%
04
0%
07
0%
10
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
32°
Mon
13:00
32°
 
30°
 
27°
 
25°
Tue
01:00
25°
 
25°
 
30°
 
32°
Tue
13:00
33°
 
26°
 
26°
 
24°
Wed
01:00
24°
 
25°
 
29°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
05:50
Sunset
Sunset
18:01
Moon Phase
Waxing Crescent (18%)
Timezone: GMT+05:30
Last updated: Sep 14, 2026 8:41 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
8.659720
Longitude
Longitude
-75.128090
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More about San Marcos
Content curated by the NearWeather editorial team · Updated periodically

San Marcos, CO Weather and Climate Overview

Situated in the heart of Colorado, San Marcos experiences a semi-arid climate characterized by hot summers and cold, snowy winters. The town's climate is heavily influenced by its elevation, topography, and regional weather patterns, creating a unique and diverse weather experience throughout the year.

San Marcos, CO Average Weather by Season

Let's dive into the details of San Marcos's weather patterns and average conditions by season.

Spring (March - May)

Spring in San Marcos brings a gradual transition from the cold of winter to the warmth of summer. Temperatures begin to rise, and the town experiences mild and pleasant weather. The average high temperatures range from 55°F (13°C) in March to 70°F (21°C) in May, while the average lows range from 25°F (-4°C) to 40°F (4°C) during the same period.

Summer (June - August)

Summer in San Marcos is characterized by hot and dry weather. The town experiences abundant sunshine and low humidity during this season. Average high temperatures range from 80°F (27°C) in June to 85°F (29°C) in August, while average lows range from 45°F (7°C) to 50°F (10°C).

Fall (September - November)

As fall sets in, San Marcos experiences a beautiful display of changing colors as the foliage transforms. The temperatures begin to cool down, and the weather becomes crisp and refreshing. Average high temperatures range from 70°F (21°C) in September to 55°F (13°C) in November, with average lows ranging from 35°F (2°C) to 20°F (-6°C).

Winter (December - February)

Winter in San Marcos brings cold temperatures and significant snowfall. The town transforms into a winter wonderland, creating picturesque landscapes. Average high temperatures range from 40°F (4°C) in December to 30°F (-1°C) in February, while average lows range from 10°F (-12°C) to 0°F (-18°C).

Precipitation and Weather Patterns

San Marcos experiences relatively low precipitation throughout the year, with the majority of the precipitation occurring during the winter and early spring months. The town receives an average of 15 inches of snowfall annually, adding to its scenic beauty during the winter season.

Thunderstorms are infrequent in San Marcos, and the town enjoys over 300 days of sunshine per year, making it an ideal destination for outdoor activities and recreation.

Extreme Weather Events

While San Marcos generally enjoys stable and predictable weather patterns, the town is susceptible to occasional extreme weather events, including blizzards during the winter months and sporadic thunderstorms during the summer. Residents and visitors are advised to stay informed about weather forecasts and be prepared for sudden changes in weather conditions.

Conclusion

Despite its semi-arid climate, San Marcos offers a diverse and captivating weather experience throughout the year. From the vibrant colors of fall to the snowy serenity of winter, each season brings its own unique charm to this picturesque Colorado town, making it a must-visit destination for weather enthusiasts and nature lovers alike.

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 temperature in San Marcos right now?

The current temperature in San Marcos is 29°, and it feels like 34°. Today's high is 29° and the low is 29°.

Will it rain in San Marcos today?

The chance of rain in San Marcos today is 2%. Check the hourly forecast above for exact timing.

What is the weather in San Marcos today?

San Marcos is experiencing overcast clouds with a temperature of 29°. Humidity is at 80% and wind speed is 6.26 km/h from the SW.

What is the humidity in San Marcos today?

Humidity in San Marcos is 80% right now, with a dew point of 25°. Conditions may feel muggy or uncomfortable.

What is the wind speed in San Marcos today?

Wind speed in San Marcos is 6.26 km/h, flowing at 214° SW wind direction. Gusts up to 15.66 km/h.

What is the 5-day forecast for San Marcos?

NearWeather provides a detailed 5-day forecast and 48-hour hourly forecast for San Marcos. Today's high is 29° and low is 29°, with a 2% chance of rain. Scroll up to view the full day-by-day and hourly breakdown.

What does it feel like in San Marcos today?

It feels like 34° in San Marcos today, with 99% cloud cover and 10 km visibility.

Weather in San Marcos