Fruita, CO
The halfway point is Jamestown, IN.
Bell, TN
The halfway point between Omaha and Red Oak (taking I-29 south to US-34) is Glenwood, Iowa.
Le Claire, IA
Sterling, CO
Concordia MO
davenport
Camp Grounds, Kentucky is halfway between Orland Park & Hilton Head Island
What is the halfway point between Omaha NE and Springfield IL
The halfway point between San Diego and Yosemite Valley is Bakersfield. The total amount of miles to Yosemite from San Diego is 430, requiring over 7 hours of driving.
Bakersfield would be the approximate halfway point. If you start your drive early enough, you should be able to reach Yosemite before sunset even with a few rest breaks.
Omaha Iowa is not perfectly in the middle, but it's close.