South Dakota Coverage
Oahe and the Missouri Duck Migration Forecast
Pierre up through Gettysburg and Mobridge. Reservoir water that stays open long after the prairie is hard, though it is the one region no radar reaches.
See today’s live scoreAll of SD
Season dates: South Dakota duck season 2026-27, dates and migration timing
When Oahe and the Missouri peaks
DuckCast’s season model puts the mallard peak here around mid November. Oahe and the Missouri carries its own season curve rather than sharing South Dakota's statewide one, because the timing here genuinely differs from the rest of the state. That is a modelled typical curve, not a prediction for any single year. The actual push depends on cold fronts and freeze-up upstream, which is what the daily score tracks. Always confirm season dates with South Dakota Game, Fish and Parks.
What DuckCast watches upstream of Oahe and the Missouri
3 upstream stations feed this region's freeze line: Bismarck, Minot, Jamestown. When those stations ice over, the score here starts climbing before anything changes in the local sky.
Locations stay generalized
Hunter reports for Oahe and the Missouri are always shown at the region level. DuckCast never collects or displays exact coordinates, so filing a report here never burns a spot.
Also covered in South Dakota
Prairie CoteauSand Lake and the Upper JamesGlacial LakesMid James ValleyBig Sioux CorridorLewis and ClarkGrand River CountryCheyenne River and the HillsLive migration map
Season dates and regulations change. Always verify with SD Game, Fish and Parks. DuckCast forecasts conditions, not legal seasons.