South Dakota Coverage
Sand Lake and the Upper James Duck Migration Forecast
Sand Lake refuge and the James River flats above Aberdeen. Enormous snow goose staging, with mallards using the river when the sheet water goes.
See today’s live scoreAll of SD
Season dates: South Dakota duck season 2026-27, dates and migration timing
Where Sand Lake and the Upper James is
Sand Lake and the Upper James is drawn from 5 counties in South Dakota: Brown, Campbell, Edmunds, Faulk and McPherson. Those are the counties its shape on the DuckCast map is built from, so a hunter in any of them reads this region’s score.
When Sand Lake and the Upper James peaks
DuckCast’s season model puts the mallard peak here around early November. This follows the statewide mallard curve. 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 the state wildlife agency, linked below.
What DuckCast watches upstream of Sand Lake and the Upper James
3 upstream stations feed this region's freeze line, nearest first: Jamestown, ND, about 90 miles north, Fargo, ND, about 115 miles northeast and Devils Lake, ND, about 175 miles north. When those stations ice over, the score here starts climbing before anything changes in the local sky.
Radar over Sand Lake and the Upper James
Each morning DuckCast reads the night’s NEXRAD data from KABR, the National Weather Service radar at Aberdeen, about 10 miles south of the region’s weather point. That is close enough for the radar to sample the air over the region itself. Radar sees every bird in the air, not only ducks, so it confirms or questions the score rather than moving it.
Locations stay generalized
Hunter reports for Sand Lake and the Upper James 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
Nearest first. Distances run between the regions’ weather points.
- Prairie Coteau, about 55 miles east
- Glacial Lakes, about 75 miles southeast
- Mid James Valley, about 75 miles south
- Oahe and the Missouri, about 110 miles southwest
- Big Sioux Corridor, about 145 miles southeast
- Grand River Country, about 190 miles west
- Lewis and Clark, about 190 miles south
- Cheyenne River and the Hills, about 245 miles west
Across the state line
- Southeast North Dakota, North Dakota, about 55 miles northeast
Season dates and regulations change. Always verify with SD Game, Fish and Parks. DuckCast forecasts conditions, not legal seasons.