Newbie in trouble! :)

Koepel:
Do you use this library ? GitHub - olewolf/DHT_nonblocking: Non-blocking Arduino library for the DHT11, DHT21, and DHT22 sensors.
It has only one example: DHT_nonblocking.ino.

In that example, you see that 'temperature' and 'humidity' are local variables in the loop().
I suggest that you do the same.
You have made them global and also 'const'. The 'const' keyword tells the compiler that the variable is a constant and will never change.

Can you add a delay(200); at the end of the loop(). You are sending far to many "fuera" messages to the serial port.
Why would you send "fuera" so often to the serial port ? You can prevent such problems by making the text of the code look better. Press Ctrl+T in the Arduino IDE and then put every space, every comma, every indent, every new line at the right place. The perfect sketch shows its structure of the code with a single glance at the code.

What is your programming experience and in which language ?

Hi, thanks for your reply!,
I had also humidity, and temperature as locals, but same result, that is why i change them, just to see if does change anything. But you are right i will put them just as it was.
actually i send the messages "fuera"& "dentro" just to see if it gets printed to verify where the code reads...since we don´t have break points or any other tool to follow the coding...