Is there mercury in the thermometer for measuring the weather?

Mercury thermometer contains mercury and is characterized by a silver line in the middle.

Alcohol thermometers and kerosene do not contain mercury, which is characterized by a red line in the middle of the thermometer (or other colors such as black, but not silver).

Supplement: Generally, alcohol thermometers are mostly used to measure the weather, because the freezing point of mercury is MINUS 39 degrees, and it will freeze if the weather is too cold.