The India Meteorological Department (IMD) has issued a heatwave alert for Maharashtra's Thane, Raigad districts and parts of Mumbai from April 27 to 29.
IMD scientist Sushma Nair on Wednesday said there is an anti-cyclonic circulation over Thane, Raigad and parts of Mumbai which will lead to a rise in temperature.
The temperatures are likely to peak on April 27 and 28.