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USGS National Climate Change Viewer provides maps of projected future climate

The US Geological Survey has a new interactive web site which shows model projections of climate in the US compared to present conditions at

This site allows you to look at projections of climate in 2050-2074 compared to the present for a variety of models, regions and months across the US.  It focuses on impacts on the water cycle and includes changes in maximum and minimum temperature, precipitation, evaporation, soil moisture, and runoff.  It also breaks down the projections into individual model results so you can see the spread in projections by various scientific groups.

USGS climate viewer