 |
 Current San Marcos Weather Conditions |
Updated January 12th at 4:56 pm |
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| Mostly Sunny |
| Temperature: | 63°F |
Dew Point: | 27°F |
| Barometer: | 30.36 inHg |
Wind: | calm |
| Humidity: | 25.3% |
Visibility: | 0M |
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| San Marcos Weather Forecast Summary |
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Today
Jan 12th
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Tuesday
Jan 13th
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Wednesday
Jan 14th
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Thursday
Jan 15th
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Friday
Jan 16th
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 |
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 |
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Cloudy |
Cloudy |
Cloudy |
Sunny |
Sunny |
57°F
|
59°F
49°F |
66°F
48°F |
56°F
42°F |
66°F
40°F |
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| San Marcos Detailed Weather Forecast |
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| Monday, January 12th, 2026 |
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Evening |
Temperature: 49°F |
| Cloudy. |
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| Tuesday, January 13th, 2026 |
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Overnight |
Temperature: 50°F |
| Cloudy. |
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Morning |
Temperature: 55°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 54°F |
| Cloudy with sunny periods. |
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Evening |
Temperature: 51°F |
| Clear with cloudy periods. Windy at times. |
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| Wednesday, January 14th, 2026 |
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Overnight |
Temperature: 48°F |
| Clear. |
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Morning |
Temperature: 60°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 60°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 52°F |
| Clear. Windy at times. |
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| Thursday, January 15th, 2026 |
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Overnight |
Temperature: 44°F |
| Clear. |
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Morning |
Temperature: 50°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 49°F |
| Sunny. |
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Evening |
Temperature: 44°F |
| Clear. |
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| Friday, January 16th, 2026 |
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Overnight |
Temperature: 40°F |
| Clear. |
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Morning |
Temperature: 56°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 57°F |
| Sunny. |
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Evening |
Temperature: 51°F |
| Clear. |
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| Saturday, January 17th, 2026 |
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Overnight |
Temperature: 44°F |
| Clear. |
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Morning |
Temperature: 56°F |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 52°F |
| Sunny. |
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Evening |
Temperature: 45°F |
| Clear. |
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| Sunday, January 18th, 2026 |
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Overnight |
Temperature: 41°F |
| Clear. |
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Morning |
Temperature: 58°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 60°F |
| Sunny. |
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Evening |
Temperature: 55°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Monday, January 19th, 2026 |
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Overnight |
Temperature: 50°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 64°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 66°F |
| Cloudy. Windy at times. |
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Evening |
Temperature: 63°F |
| Cloudy with a slight chance of showers. Windy at times. |
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| Tuesday, January 20th, 2026 |
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Overnight |
Temperature: 63°F |
| Cloudy. |
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Morning |
Temperature: 66°F |
| Cloudy with a slight chance of showers. Windy at times. |
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Afternoon |
Temperature: 66°F |
| Cloudy with a slight chance of showers. Windy at times. |
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Evening |
Temperature: 65°F |
| Cloudy. Windy at times. |
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