A grain spreader includes a hopper and spreader arms that distribute grain in a bin with a spreader cone having convergent divergent cones. The convergent cone forms a first flow zone. A center opening between the convergent cone and divergent cone allows a first portion of grain collecting in the convergent cone to pass through the spreader cone. An intermediate funnel is inside the hopper body between the convergent cone and the hopper body. A second portion of the grain spills over the rim of the convergent cone and onto the divergent cone into a second flow zone outside the convergent cone but inside the intermediate funnel. When the second zone fills with grain, a further portion of grain will spill over a rim of the intermediate funnel into a third flow zone radially outward of the intermediate funnel but inside the hopper body.