It was 13C yesterday, but the temperature changed by -18.6 overnight. What is the temperature now?

To find the temperature now, we need to subtract 18.6 from 13.

13 - 18.6 = -5.6

The temperature now is -5.6°C.

To find the temperature now, we need to subtract 18.6 from 13.

Temperature now = 13 - 18.6

Let's calculate the result.

Temperature now = -5.6

Therefore, the temperature now is -5.6 degrees Celsius.