what is the hemispheres of Nebraska/

Nebraska is in the Northern and Western Hemispheres.

http://www.worldatlas.com/aatlas/imageh.htm

Nebraska is located in the Northern Hemisphere. To determine this, you can look at a map of the world. Nebraska is situated above the equator, so it falls within the Northern Hemisphere. The Northern Hemisphere includes areas north of the equator, while the Southern Hemisphere includes areas south of the equator.