Weatherby is a village in DeKalb County, Missouri, United States. The population was 107 at the 2010 census. It is part of the St. Joseph, MO–KS Metropolitan Statistical Area.
Weatherby was laid out in 1885 by L. H. Weatherby, and named for him. A post office called Weatherby has been in operation since 1886.
The Absolom Riggs House was listed on the National Register of Historic Places in 1982.
Weatherby is located at 39°54′33″N 94°14′30″W (39.909231, -94.241547).
According to the United States Census Bureau, the village has a total area of 0.12 square miles (0.31 km2), all land.
As of the census of 2010, there were 107 people, 41 households, and 28 families residing in the village. The population density was 891.7 inhabitants per square mile (344.3/km2). There were 58 housing units at an average density of 483.3 per square mile (186.6/km2). The racial makeup of the village was 99.1% White and 0.9% Native American.
There were 41 households, of which 36.6% had children under the age of 18 living with them, 41.5% were married couples living together, 22.0% had a female householder with no husband present, 4.9% had a male householder with no wife present, and 31.7% were non-families.