Weather in San Marcos, United States 🇺🇸
Weather Forecast in San Marcos
In San Marcos right now it is 21°C and sunny, feeling like 21°C. Humidity is 76% with winds around 7 km/h, and the UV index is 0 (low). Over the next few days, temperatures in San Marcos range from about 15°C to 30°C. ⚠️ Heat Advisory issued July 7 at 12:13AM PDT until July 9 at 8:00PM PDT by NWS San Diego CA
Hourly Forecast for San Marcos
14-Day Forecast for San Marcos
Sunny
Sunny
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Patchy rain nearby
Sunny
Additional Forecasts for San Marcos
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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 08:00 to 10:00, when it is around 22°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?
The current temperature in San Marcos is 21°C (70°F), sunny (feels like 21°C).
What's the weather like in San Marcos right now?
Conditions in San Marcos right now: Sunny, humidity 76%, wind 7 km/h W.
What is today's forecast for San Marcos?
Today in San Marcos: high 30°C, low 15°C, sunny. Chance of rain: 9%.
What is the 7-day weather forecast for San Marcos?
Daily highs and lows for San Marcos:
- 2026-07-07: 30°C / 15°C
- 2026-07-08: 29°C / 15°C
- 2026-07-09: 29°C / 17°C
- 2026-07-10: 28°C / 16°C
- 2026-07-11: 27°C / 16°C
- 2026-07-12: 26°C / 18°C
- 2026-07-13: 26°C / 18°C
Is it going to rain in San Marcos today?
There is a 9% chance of rain in San Marcos today.
What is the wind speed in San Marcos right now?
Wind in San Marcos is currently 7 km/h (4 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.
