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The research was aimed to; (i) study the observed climate in Iraq from 1971-2021 for annually, monthly and seasonally averages of temperature and precipitation for nine meteorological stations; ii) produce RCP4.5 and RCP8.5 scenarios for Iraq region under historical (1900-2005) and future periods (2006-2100) for temperature and precipitation using NCAR-CCSM4 database; and iii) examine the anomaly for near future (2025-2034) and medium future (2050-2059), related to 1986-2005. To evaluate the performance of the monthly averages of temperature and precipitation, three bias correction techniques i.e., Delta, Empirical Quantile Mapping, and Quantile Mapping were applied to nine metrological stations. The results revealed that the Delta is the most efficient method to bias correction for the monthly averages related to temperature and precipitation. The annual average temperature increased from 22.9 C° …