Currently: 67 °F. Clear. (Weather station: San Marcos Municipal Airport, USA). See more current weatherSan Marcos Extended Forecast with high and low temperatures
2 Week Extended Forecast in San Marcos, Texas, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Sat Dec 13 |  | 78 / 62 °F | Breaks of sun late. | 79 °F | 5 mph | ↑ | 62% | 5% | 0.00" | 3 (Moderate) | 7:18 am | 5:33 pm |
| Sun Dec 14 |  | 66 / 39 °F | Overcast. | 44 °F | 17 mph | ↑ | 57% | 20% | 0.01" | 0 (Low) | 7:19 am | 5:33 pm |
| Mon Dec 15 | | 57 / 30 °F | Cloudy. | 54 °F | 7 mph | ↑ | 32% | 0% | 0.00" | 0 (Low) | 7:19 am | 5:34 pm |
| Tue Dec 16 |  | 62 / 45 °F | Showers late. Overcast. | 55 °F | 7 mph | ↑ | 88% | 55% | 0.19" | 0 (Low) | 7:20 am | 5:34 pm |
| Wed Dec 17 | | 75 / 61 °F | Passing showers. Overcast. | 75 °F | 13 mph | ↑ | 77% | 45% | 0.12" | 0 (Low) | 7:21 am | 5:34 pm |
| Thu Dec 18 | | 83 / 66 °F | Morning clouds. | 84 °F | 12 mph | ↑ | 62% | 1% | 0.00" | 0 (Low) | 7:21 am | 5:35 pm |
| Fri Dec 19 | | 77 / 62 °F | Showers late. Overcast. | 78 °F | 11 mph | ↑ | 73% | 18% | 0.02" | 0 (Low) | 7:22 am | 5:35 pm |
| Sat Dec 20 | | 77 / 66 °F | Overcast. | 77 °F | 16 mph | ↑ | 76% | 14% | 0.01" | 0 (Low) | 7:22 am | 5:36 pm |
| Sun Dec 21 |  | 75 / 60 °F | Tstorms early. Mostly sunny. | 77 °F | 13 mph | ↑ | 38% | 89% | 0.11" | 3 (Moderate) | 7:23 am | 5:36 pm |
| Mon Dec 22 |  | 72 / 53 °F | Mostly sunny. | 77 °F | 8 mph | ↑ | 56% | 6% | 0.00" | 3 (Moderate) | 7:23 am | 5:37 pm |
| Tue Dec 23 |  | 73 / 53 °F | Sprinkles late. Cloudy. | 77 °F | 12 mph | ↑ | 57% | 49% | 0.02" | 0 (Low) | 7:24 am | 5:37 pm |
| Wed Dec 24 | | 74 / 53 °F | Sprinkles. Cloudy. | 77 °F | 10 mph | ↑ | 61% | 51% | 0.04" | 0 (Low) | 7:24 am | 5:38 pm |
| Thu Dec 25 | | 76 / 54 °F | Sprinkles. Cloudy. | 78 °F | 11 mph | ↑ | 68% | 50% | 0.04" | 0 (Low) | 7:25 am | 5:39 pm |
| Fri Dec 26 | | 76 / 54 °F | Sprinkles early. Morning clouds. | 78 °F | 11 mph | ↑ | 52% | 47% | 0.01" | 3 (Moderate) | 7:25 am | 5:39 pm |
| Sat Dec 27 |  | 76 / 54 °F | Sunny. | 78 °F | 7 mph | ↑ | 51% | 5% | 0.00" | 3 (Moderate) | 7:25 am | 5:40 pm |
| * Updated Saturday, December 13, 2025 3:23:57 pm San Marcos time - Weather by CustomWeather, © 2025 | ||||||||||||