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San Marcos weather
Current conditions and a 14-day forecast for San Marcos, United States. Looking for typical seasonal weather instead? See the historical climate averages.
Now
24°C
Partly cloudy · feels 26°C
Humidity
81%
relative humidity
Wind
6 km/h
10m wind speed
Chance of rain
0%
today
Next 24 hours in San Marcos
| Time | Conditions | Temp | Rain chance |
|---|---|---|---|
| 9am | Partly cloudy | 24°C | 0% |
| 10am | Clear sky | 26°C | 0% |
| 11am | Clear sky | 30°C | 0% |
| 12pm | Clear sky | 32°C | 0% |
| 1pm | Clear sky | 33°C | 0% |
| 2pm | Clear sky | 33°C | 0% |
| 3pm | Clear sky | 32°C | 0% |
| 4pm | Clear sky | 30°C | 0% |
| 5pm | Clear sky | 29°C | 0% |
| 6pm | Clear sky | 28°C | 0% |
| 7pm | Clear sky | 26°C | 0% |
| 8pm | Clear sky | 24°C | 0% |
| 9pm | Clear sky | 23°C | 0% |
| 10pm | Clear sky | 22°C | 0% |
| 11pm | Clear sky | 21°C | 0% |
| 12am | Clear sky | 20°C | 0% |
| 1am | Clear sky | 20°C | 1% |
| 2am | Clear sky | 19°C | 1% |
| 3am | Clear sky | 19°C | 1% |
| 4am | Clear sky | 19°C | 1% |
| 5am | Clear sky | 18°C | 1% |
| 6am | Clear sky | 18°C | 1% |
| 7am | Clear sky | 19°C | 1% |
| 8am | Clear sky | 23°C | 1% |
14-day forecast for San Marcos
| Day | Conditions | High / Low | Rain chance |
|---|---|---|---|
| Today | Partly cloudy | 33° / 18° | 0% |
| Thu, Jul 16 | Overcast | 28° / 18° | 3% |
| Fri, Jul 17 | Overcast | 26° / 20° | 1% |
| Sat, Jul 18 | Overcast | 26° / 20° | 1% |
| Sun, Jul 19 | Mainly clear | 27° / 19° | 1% |
| Mon, Jul 20 | Clear sky | 27° / 19° | 3% |
| Tue, Jul 21 | Overcast | 28° / 19° | 3% |
| Wed, Jul 22 | Light drizzle | 29° / 21° | 14% |
| Thu, Jul 23 | Light drizzle | 28° / 22° | 13% |
| Fri, Jul 24 | Overcast | 30° / 21° | 13% |
| Sat, Jul 25 | Overcast | 31° / 22° | 8% |
| Sun, Jul 26 | Overcast | 28° / 20° | 14% |
| Mon, Jul 27 | Clear sky | 28° / 20° | 12% |
| Tue, Jul 28 | Clear sky | 26° / 19° | 6% |
Want more sun and moon detail for San Marcos? Use the sun calculator or moon calculator and search for San Marcos. For a live look at any other city, try the interactive weather tool.
Frequently asked questions
What's the weather like in San Marcos today?
Current conditions and today's forecast for San Marcos, United States are shown above, refreshed regularly through the day.
How accurate is a 14-day forecast?
A forecast is most reliable for the next 3-5 days. Beyond that, temperature and precipitation chances further out are a general trend rather than an exact prediction.
What is San Marcos's weather usually like?
For long-term averages — typical monthly temperatures and rainfall based on years of historical data — see San Marcos's climate page rather than this live forecast.