If you are talking about Earth the Exosphere can reach temperatures of 2,500 °C (4,530 °F) during the day. Even though the temperature is so high, you would not feel warm even in the thermosphere which can get up-to 1,500 °C (2,730 °F), you would feel no heat due to the fact there are so few molecules and it is so close to vacuum.
Since there is no clear boundary between outer space and the exosphere, the exosphere is sometimes considered a part of outer space. So people use the Thermosphere as the delineator
thermosphere
The temperature is highest in the thermosphere, the outermost layer of the Earth's atmosphere. This is where solar radiation is absorbed, leading to high temperatures.
Planet with an atmosphere, Venus. Planet without an atmosphere, Mercury (on the day side).
After the troposphere, the next layer of the atmosphere with the highest temperatures is the stratosphere. In the stratosphere, temperatures increase with altitude due to the absorption of ultraviolet radiation by the ozone layer. This heating effect causes the stratosphere to be warmer at higher altitudes compared to the lower part of the layer.
The highest temperature on Venus is around 900 degrees Fahrenheit (about 475 degrees Celsius). Venus has a thick atmosphere that traps heat from the sun, leading to extremely high surface temperatures.
IT is closest to the sun
It’s 45,000 ft for commercial airliners
Its different for every part of the world. Be more specific.
major climatic change where part of the earth would suffer immense drought while parts would be flooded because the evaporated water would not leave the planet
None of it. The most the atmosphere's heat and temperature can do is evaporate water.
Not on your life. The highest layers of the atmosphere are the coldest, and the hottest season in the US occurs at the time when the Earth is farthest away from the sun.
Inner core Outer core Mantle Crust Hydrosphere Atmosphere