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Cloudy with a high of 80 °F (26.7 °C) and a 56% chance of precipitation. Winds variable at 6 to 7 mph (9.7 to 11.3 kph). Night - Cloudy with a 52% chance of precipitation. Winds variable at 5 to ...
San Marcos Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the San Marcos area.