Temperatures have risen in many parts. 39.6 degrees Celsius was recorded in Palayankottai. In connection with an official of meteorological centre said: There are no rains for the last few days in Tamil Nadu. Dry wind with less humidity is blowing from the westerly side. Because of this, the temperatures have gone up. In the next 24 hours there will be scattered rains in one or two places of Tamil Nadu and Puducherry due to convection.