Which word best describes today's weather?

The word that best fits to describe today's weather is "humid." Humidity refers to the amount of moisture in the air. When the air is humid, it often feels muggy and can make the temperature feel warmer than it actually is. This term captures the essence of a balmy or sticky weather condition, which can significantly impact one's comfort level outdoors.

In contrast, the other terms—dry, wet, and cool—each describe different weather conditions. "Dry" indicates a lack of moisture, which does not apply to humid conditions. "Wet" suggests precipitation such as rain, while "cool" refers to a lower temperature. Each of these descriptions focuses on a specific aspect of weather that would not encompass the overall feeling of dampness and moisture conveyed by "humid." Thus, "humid" is the most accurate term to describe an oppressive or moist weather scenario.