The type of cloud typically associated with fair weather is "cumulus" clouds. These clouds are characterized by their fluffy, white appearance and a cotton-like structure. Cumulus clouds form when warm, moist air rises and cools, causing water vapor to condense into droplets. They often develop on sunny days and can indicate that conditions are suitable for outdoor activities. While cumulus clouds can sometimes grow into larger storm clouds, stable weather is commonly associated with their presence in the sky. Their picturesque appearance makes them a favorite among nature lovers and photographers alike.