LM35 Temperature Sensor
Look up the datasheet for the LM35 and figure out what output voltage you will get at 60°C and at the limits of the temperature range you expect to see. Add these into your question.

Next figure out what tolerance you want. If it switched at 59° would that be OK? Add that to your question.

Then decide how much hysteresis you want. If the output is to switch high at 60°C then at what point does it switch low? Most devices avoid having both at the same value (hysteresis = zero) because if the temperature is very close to setpoint the device may start switching rapidly. Add this into your question.

Finally work out what digital values will be read by the Arduino for each of these temperatures. Add these in too.

We'll help you along with the added information.