A cloudless sky and strong light today, with just enough NNE wind to ripple the surface with a settled glass. Whatever swims in Mary Lake should be near shallow cover and weed edges. One clear peak today: the night. Cover water early, then settle where the signs are. A hard-frost feel to the day; keep expectations modest.
The bites are average now
Night
Mary Lake is one of the Watonwan County listings for Minnesota. It lies 1,102 feet above sea level. Roughly 121 acres: a morning covers one end, an afternoon the other. Around 1.7 miles of margin, front to back. Saint James lies 4 miles from the water. It is 100 miles to Minneapolis, the nearest city. The line between counties passes nearby, which can change who manages the water.
Without a survey to go on, judge depth from how the bank falls away. On a natural lake the weed line and the shelf beyond it do the work. The productive water is a rod length or two out, not a hundred. Watonwan County records list common carp, walleye, black bullhead and yellow perch among the fish reported. The county figures include rivers and lakes alike. Read Mary Lake for ten minutes before the first cast goes out.
July is the warm end of the year here, averaging about 72°F, while January sits near 13°F. The middle months are generous; the ends are demanding. Winter fishing happens on the ice here, with open water back around early April. Going by climate averages, expect open water from about early April until roughly early December. Early summer and early autumn carry the open-water season. At Mary Lake the season follows that pattern closely.
The rules here are undocumented as far as public sources go. This is a natural basin, not a dammed one. Formal access is not mapped, so the last stretch is likely on foot. Bass water: a Texas-rigged worm near cover, a spinnerbait when you need to cover ground. A phone call first saves an afternoon. Some water is controlled locally without a sign saying so. Long Lake at 1.7 miles is the sensible second choice. Where Mary Lake is concerned, a local answer beats a written one.
47%
The bites are average now
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 6.4 | 5.7 | 5.6 | 5.1 | 4.1 | 2.9 | 3.6 | 3.4 | 3.7 | 5 | 3.2 | 3.9 | 4.7 | 3.8 | 4.5 | 4.4 | 3.8 | 4.1 | 4.3 | 3.9 | 2.7 | 2.8 | 3 | 2.9 |
| 27° | 26° | 25° | 25° | 24° | 24° | 22° | 22° | 22° | 27° | 30° | 33° | 36° | 38° | 39° | 39° | 38° | 35° | 32° | 31° | 30° | 30° | 29° | 29° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 30.22 | 30.22 | 30.24 | 30.24 | 30.23 | 30.24 | 30.25 | 30.26 | 30.26 | 30.26 | 30.27 | 30.26 | 30.25 | 30.23 | 30.21 | 30.19 | 30.19 | 30.2 | 30.19 | 30.2 | 30.23 | 30.24 | 30.25 | 30.25 |
| 90 | 92 | 90 | 90 | 91 | 91 | 91 | 92 | 93 | 89 | 83 | 73 | 63 | 58 | 55 | 57 | 60 | 70 | 77 | 79 | 81 | 83 | 84 | 85 |
Sam
AI Fishing Assistant for Mary Lake
Morning
Afternoon
Evening
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time