Which cloud type would most likely indicate fair weather?

Cumulus clouds are typically associated with fair weather conditions. These clouds are characterized by their fluffy, white appearance and are often seen on sunny days. They form as a result of rising warm air that cools and condenses, creating puffy formations. While cumulus clouds can develop into larger storm clouds under the right conditions, their presence, especially when they are scattered, generally signals a lack of significant weather disturbances, indicating stable and pleasant atmospheric conditions.

In contrast, stratus clouds often cover the sky in a uniform layer, which can bring overcast conditions but usually means no precipitation or minor mist. Cumulonimbus clouds are associated with severe weather, including thunderstorms, heavy rainfall, and sometimes severe phenomena like hail. Nimbostratus clouds indicate continuous rain and are typically associated with overcast skies and precipitation, which is contrary to fair weather. Thus, the presence of cumulus clouds is a positive indicator of favorable weather conditions.