Currently: 47 °F. Clear. (Weather station: San Marcos Municipal Airport, USA). See more current weatherPast Weather in San Marcos — Graph
San Marcos Temperature Yesterday
Maximum temperature yesterday: 52 °F (at 1:56 pm)
Minimum temperature yesterday: 44 °F (at 3:56 am)
Average temperature yesterday: 47 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 85 °F (Nov 25, 2:56 pm) | 100% (Nov 21, 1:41 am) | 30.45 "Hg (Nov 21, 1:41 am) |
| Low | 31 °F (Dec 2, 6:56 am) | 23% (Nov 25, 2:56 pm) | 29.83 "Hg (Nov 24, 2:56 pm) |
| Average | 57 °F | 75% | 30.10 "Hg |
| * Reported Nov 21 1:41 am — Dec 6 1:56 am, San Marcos. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
San Marcos Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 1:56 am Sat, Dec 6 | | 48 °F | Clear. | 6 mph | ↑ | 86% | 30.01 "Hg | 10 mi |
| 12:56 am | | 47 °F | Clear. | 6 mph | ↑ | 90% | 30.01 "Hg | 10 mi |
| 11:56 pm Fri, Dec 5 | | 47 °F | Clear. | 5 mph | ↑ | 86% | 30.01 "Hg | 10 mi |
| 10:56 pm | | 48 °F | Clear. | 5 mph | ↑ | 83% | 30.02 "Hg | 10 mi |
| 9:56 pm | | 48 °F | Clear. | 7 mph | ↑ | 83% | 30.03 "Hg | 10 mi |
| 8:56 pm | | 48 °F | Clear. | 6 mph | ↑ | 83% | 30.02 "Hg | 10 mi |
| 7:56 pm | | 49 °F | Clear. | 5 mph | ↑ | 80% | 30.01 "Hg | 10 mi |
| 6:56 pm | | 50 °F | Clear. | 3 mph | ↑ | 77% | 30.02 "Hg | 10 mi |
| 5:56 pm | | 50 °F | Clear. | 8 mph | ↑ | 77% | 29.99 "Hg | 10 mi |
| 4:56 pm |  | 51 °F | Sunny. | 7 mph | ↑ | 74% | 29.98 "Hg | 10 mi |
| 3:56 pm |  | 52 °F | Passing clouds. | 7 mph | ↑ | 69% | 30.00 "Hg | 10 mi |
| 2:56 pm |  | 52 °F | Overcast. | 8 mph | ↑ | 69% | 30.02 "Hg | 10 mi |
| 1:56 pm |  | 52 °F | Partly sunny. | 8 mph | ↑ | 69% | 30.05 "Hg | 10 mi |
| 12:56 pm | | 50 °F | Overcast. | 8 mph | ↑ | 71% | 30.08 "Hg | 10 mi |
| 11:56 am | | 49 °F | Overcast. | 3 mph | ↑ | 71% | 30.11 "Hg | 10 mi |
| 10:56 am | | 48 °F | Mostly cloudy. | No wind | ↑ | 74% | 30.14 "Hg | 10 mi |
| 9:56 am | | 46 °F | Mostly cloudy. | No wind | ↑ | 79% | 30.15 "Hg | 10 mi |
| 8:56 am | | 45 °F | Overcast. | 6 mph | ↑ | 80% | 30.14 "Hg | 10 mi |
| 7:56 am | | 44 °F | Overcast. | 6 mph | ↑ | 82% | 30.14 "Hg | 10 mi |
| 6:56 am |  | 44 °F | Overcast. | 8 mph | ↑ | 82% | 30.14 "Hg | 10 mi |
| 5:56 am | | 44 °F | Mostly cloudy. | 5 mph | ↑ | 85% | 30.15 "Hg | 10 mi |
| 4:56 am | | 44 °F | Overcast. | 7 mph | ↑ | 85% | 30.16 "Hg | 10 mi |
| 3:56 am | | 44 °F | Mostly cloudy. | 6 mph | ↑ | 85% | 30.16 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||