Wow! It's hot! About 103° Fahrenheit or almost 46° Celsius. A common style of outdoor thermometer.

A thermometer measures the temperature. Some are designed to measure the temperature of the air, others measure the temperature of a person (to test for illness) or of something that is being cooked (to make sure it is at a safe) temperature. A thermometer is also part of a thermostat which helps control when a heating or cooling system is turned on.

Old style, oral body temperature themometer.

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