This research explores observed, simulated, and projected extreme climate indices from a selection of different GCMs from CMIP5 ensemble for Pakistan at province level. The extreme indices for observed, simulated and projected climate are found and analysed on provincial basis over the country. Pakistan has been facing shortages in both the power and water sector which are the lifelines of the country. Significant increases in the maximum and minimum temperatures over the country may affect such sectors drastically. Considerable increase in the frequency and intensity of extreme weather events, coupled with erratic monsoon rains may cause frequent and intense floods and droughts in the region. Rising temperatures resulting in enhanced heat and water-stressed conditions, particularly in arid and semi-arid regions, may lead to reduced agricultural productivity. This report shall bring added value to all stakeholders and policy makers in determining the hazards that extreme climate has brought in the past and may bring in the near future.