 |
 Current San Marcos Weather Conditions |
Updated December 19th at 6:56 am |
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| Temperature: | 36°F |
Dew Point: | 28°F |
| Barometer: | 30.21 inHg |
Wind: | N 13 Mph |
| Humidity: | 74.7% |
Visibility: | 0M |
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| San Marcos Weather Forecast Summary |
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Today
Dec 19th
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Saturday
Dec 20th
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Sunday
Dec 21st
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Monday
Dec 22nd
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Tuesday
Dec 23rd
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Sunny |
Mostly Sunny |
Cloudy |
Cloudy |
Cloudy |
67°F
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79°F
50°F |
77°F
61°F |
83°F
62°F |
78°F
65°F |
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| San Marcos Detailed Weather Forecast |
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| Friday, December 19th, 2025 |
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Morning |
Temperature: 59°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 57°F |
| Sunny. |
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Evening |
Temperature: 53°F |
| Clear. Windy at times. |
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| Saturday, December 20th, 2025 |
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Overnight |
Temperature: 51°F |
| Clear. |
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Morning |
Temperature: 69°F |
| Mostly sunny. Windy. |
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Afternoon |
Temperature: 69°F |
| Sunny. |
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Evening |
Temperature: 64°F |
| Clear. |
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| Sunday, December 21st, 2025 |
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Overnight |
Temperature: 61°F |
| Clear. |
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Morning |
Temperature: 71°F |
| Sunny. |
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Afternoon |
Temperature: 68°F |
| Sunny. |
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Evening |
Temperature: 65°F |
| Cloudy. |
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| Monday, December 22nd, 2025 |
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Overnight |
Temperature: 62°F |
| Cloudy. |
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Morning |
Temperature: 76°F |
| Sunny with cloudy periods. Chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 75°F |
| A mix of cloud and sun. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 71°F |
| Cloudy. Chance of a thunderstorm. Windy at times. |
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| Tuesday, December 23rd, 2025 |
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Overnight |
Temperature: 69°F |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Morning |
Temperature: 74°F |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 74°F |
| A mix of cloud and sun. Windy at times. |
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Evening |
Temperature: 67°F |
| Mostly clear. Windy at times. |
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| Wednesday, December 24th, 2025 |
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Overnight |
Temperature: 63°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 71°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 71°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 65°F |
| Clear. Windy at times. |
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| Thursday, December 25th, 2025 |
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Overnight |
Temperature: 61°F |
| Cloudy. |
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Morning |
Temperature: 73°F |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 72°F |
| Sunny. |
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Evening |
Temperature: 67°F |
| Clear with cloudy periods. Windy at times. |
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| Friday, December 26th, 2025 |
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Overnight |
Temperature: 67°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 73°F |
| Cloudy with a slight chance of showers. Windy at times. |
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Afternoon |
Temperature: 73°F |
| Cloudy. Windy at times. |
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Evening |
Temperature: 70°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Saturday, December 27th, 2025 |
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Overnight |
Temperature: 66°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 73°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 73°F |
| Sunny. Windy. |
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Evening |
Temperature: 67°F |
| Clear with cloudy periods. Windy at times. |
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