Currently: 59 °F. Low clouds. (Weather station: San Marcos Municipal Airport, USA). See more current weatherPast Weather in San Marcos — Graph
San Marcos Temperature Yesterday
Maximum temperature yesterday: 61 °F (at 2:36 pm)
Minimum temperature yesterday: 37 °F (at 5:56 am)
Average temperature yesterday: 52 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 80 °F (Dec 13, 1:56 pm) | 100% (Dec 3, 1:03 pm) | 30.55 "Hg (Dec 3, 1:03 pm) |
| Low | 28 °F (Dec 9, 6:56 am) | 20% (Dec 11, 10:56 am) | 29.81 "Hg (Dec 6, 3:56 pm) |
| Average | 54 °F | 72% | 30.10 "Hg |
| * Reported Dec 2 6:56 am — Dec 17 6:56 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 | ||
| 6:56 am Wed, Dec 17 |  | 59 °F | Low clouds. | 3 mph | ↑ | 100% | 29.99 "Hg | 10 mi |
| 6:30 am | | 59 °F | Low clouds. | 5 mph | ↑ | 100% | 29.99 "Hg | 10 mi |
| 5:56 am | | 59 °F | Low clouds. | 6 mph | ↑ | 100% | 29.97 "Hg | 10 mi |
| 5:42 am | | 59 °F | Low clouds. | 6 mph | ↑ | 100% | 29.99 "Hg | 10 mi |
| 4:56 am | | 59 °F | Low clouds. | 6 mph | ↑ | 100% | 29.98 "Hg | 10 mi |
| 3:56 am | | 59 °F | Low clouds. | 5 mph | ↑ | 100% | 29.99 "Hg | 10 mi |
| 2:56 am | | 59 °F | Low clouds. | 3 mph | ↑ | 100% | 30.00 "Hg | 10 mi |
| 1:56 am | | 60 °F | Overcast. | No wind | ↑ | 96% | 30.01 "Hg | 10 mi |
| 1:21 am | | 61 °F | Overcast. | No wind | ↑ | 94% | 30.02 "Hg | 10 mi |
| 12:56 am | | 60 °F | Low clouds. | 7 mph | ↑ | 96% | 30.02 "Hg | 10 mi |
| 11:56 pm Tue, Dec 16 | | 59 °F | Low clouds. | 8 mph | ↑ | 100% | 30.03 "Hg | 10 mi |
| 10:56 pm | | 59 °F | Mostly cloudy. | 20 mph | ↑ | 93% | 29.99 "Hg | 10 mi |
| 9:56 pm | | 55 °F | Overcast. | 6 mph | ↑ | 96% | 30.05 "Hg | 10 mi |
| 8:56 pm |  | 56 °F | Passing clouds. | 3 mph | ↑ | 93% | 30.06 "Hg | 10 mi |
| 7:56 pm | | 57 °F | Overcast. | 6 mph | ↑ | 83% | 30.05 "Hg | 10 mi |
| 6:56 pm | | 57 °F | Overcast. | 6 mph | ↑ | 81% | 30.05 "Hg | 10 mi |
| 5:56 pm | | 58 °F | Mostly cloudy. | 3 mph | ↑ | 81% | 30.03 "Hg | 10 mi |
| 5:11 pm |  | 57 °F | Cloudy. | No wind | ↑ | 82% | 30.04 "Hg | 10 mi |
| 4:56 pm | | 60 °F | Mostly cloudy. | 5 mph | ↑ | 65% | 30.04 "Hg | 10 mi |
| 4:42 pm | | 61 °F | Overcast. | 5 mph | ↑ | 63% | 30.05 "Hg | 10 mi |
| 3:56 pm | | 60 °F | Overcast. | 5 mph | ↑ | 65% | 30.04 "Hg | 10 mi |
| 2:56 pm | | 60 °F | Overcast. | 7 mph | ↑ | 65% | 30.04 "Hg | 10 mi |
| 2:36 pm | | 61 °F | Mostly cloudy. | 8 mph | ↑ | 63% | 30.04 "Hg | 10 mi |
| 1:56 pm | | 59 °F | Overcast. | 6 mph | ↑ | 64% | 30.06 "Hg | 10 mi |
| 12:56 pm | | 57 °F | Overcast. | 3 mph | ↑ | 67% | 30.11 "Hg | 10 mi |
| 11:56 am | | 55 °F | Mostly cloudy. | 3 mph | ↑ | 67% | 30.14 "Hg | 10 mi |
| 11:39 am | | 55 °F | Overcast. | 3 mph | ↑ | 67% | 30.15 "Hg | 10 mi |
| 10:56 am | | 54 °F | Overcast. | 5 mph | ↑ | 67% | 30.18 "Hg | 10 mi |
| 9:56 am |  | 50 °F | Sunny. | 3 mph | ↑ | 77% | 30.19 "Hg | 10 mi |
| 8:56 am | | 46 °F | Sunny. | 5 mph | ↑ | 73% | 30.19 "Hg | 10 mi |
| 7:56 am | | 40 °F | Sunny. | 3 mph | ↑ | 77% | 30.20 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||