Steaming and steam temperature
No, it is impossible. There is a physics law which tells you how the temperature and pressure of a gas are related. If you try to heat a gas up, its pressure also increases automatically. If the gas is enclosed in a hermetically closed system (like a pressure cooker) then the pressure of the system becomes higher. That's actually how (and why) pressure cookers came into widespread use - not because people wanted higher pressure, but because they wanted higher steam temperature.
In a pot with the lid, the momentarily increased pressure lifts the lid of the pot, some steam escapes, and the pressure (and temperature) fall back, until a little bit more of pressure is built, the lid is lifted again, and so on, until something changes (you turn off the stove, or the water in the pot is spent). This process is frequently observed in kitchens - experienced cooks know they have to rush to a rattling pot and reduce the stove setting before something happens.