There's a bit of a misunderstanding in the question. While Venus is often called the "hottest planet", it's not actually the "warmest" in the traditional sense. Here's why:

* Venus is the hottest planet: Venus has a runaway greenhouse effect, trapping heat from the sun and resulting in surface temperatures reaching 867°F (464°C). This makes it significantly hotter than any other planet in our solar system.

* "Warmest" can be subjective: "Warmest" can refer to the average temperature, or the temperature at a specific point in time.

* Cloudy planets and temperature: Clouds can have a significant impact on a planet's temperature. They can reflect sunlight back into space, cooling the planet, or they can trap heat, making the planet warmer.

Therefore, there's no simple answer to the question of which is the "warmest" cloudy planet. It depends on how you define "warmest" and which planet's cloud cover you're considering.

Here's a little more information about the cloudiness of planets in our solar system:

* Venus: Has extremely dense, thick clouds of sulfuric acid that trap heat and contribute to its extremely hot surface.

* Earth: Has a variety of clouds that play a significant role in Earth's climate, both warming and cooling the planet.

* Jupiter, Saturn, Uranus, and Neptune: All have thick atmospheres with various cloud layers, primarily made of ammonia, methane, and water.

It's important to remember that understanding planetary temperatures and cloud cover requires a more nuanced approach than simply asking which is the "warmest" cloudy planet.