Weather in San Marcos, United States 🇺🇸
In San Marcos right now it is 20°C and partly cloudy, feeling like 16°C. Expect 90% humidity and winds of about 36 km/h, and the UV index is 0 (low). Across the coming days, San Marcos should see roughly 11°C to 30°C.
Hourly Forecast for San Marcos
14-Day Forecast for San Marcos
Sunny
Patchy rain nearby
Sunny
Patchy rain nearby
Patchy rain nearby
Light rain shower
Patchy rain nearby
Patchy rain nearby
Sunny
Patchy rain nearby
Sunny
Patchy rain nearby
Patchy rain nearby
Patchy rain nearby
Additional Forecasts for San Marcos
Air Quality
Historical Weather
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Best Time to Be Outside in San Marcos Tomorrow
There is no good daylight window left in San Marcos today. Tomorrow, the most comfortable window looks like 07:00 to 10:00, when it is around 12°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in San Marcos
What is the temperature in San Marcos right now?
San Marcos is sitting at 20°C (68°F) right now, partly cloudy (feels like 16°C).
What's the weather like in San Marcos right now?
Current weather in San Marcos: Partly Cloudy, humidity 90%, wind 36 km/h W.
What is today's forecast for San Marcos?
Today in San Marcos: high 30°C, low 18°C, sunny. Chance of rain: 8%.
What is the 7-day weather forecast for San Marcos?
Daily highs and lows for San Marcos:
- 2026-08-16: 30°C / 18°C
- 2026-08-17: 19°C / 11°C
- 2026-08-18: 13°C / 12°C
- 2026-08-19: 13°C / 12°C
- 2026-08-20: 14°C / 12°C
- 2026-08-21: 16°C / 14°C
- 2026-08-22: 15°C / 13°C
Is it going to rain in San Marcos today?
There is a 8% chance of rain in San Marcos today.
What is the wind speed in San Marcos right now?
Wind in San Marcos is currently 36 km/h (22 mph) from the W.
What is the UV index in San Marcos right now?
The UV index in San Marcos is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
