Lucknow, May 14 -- Day and night temperatures were likely to rise by 2 to 4 degrees Celsius in many parts of the state over the next five days, the Met has said in its forecast for the remainder of the current week. Meanwhile, Banda, the hottest city in the country, sizzled at 44.2 degrees on Tuesday.

Due to the increase in maximum temperatures, sporadic heatwave activities were likely to start in eastern parts of the state from Wednesday. As per the warning, it is likely to spread to western Uttar Pradesh by May 15 and continue till May 20, said Atul Kumar Singh, a senior scientist at Lucknow meteorological office.

However, due to possible drizzle/light rain in the Terai areas of the state from May 16, the heatwave is likely to see a f...