Full sun on the water today, with next to no ripple with the glass slipping lower. Activity on Thumb Lake should centre on the shallows early and the drop later. The strongest window runs from afternoon into evening. Stay mobile and follow the activity. The pre-winter feed makes autumn days generous.
The bites are excellent now
Night
Set in Otsego County, Thumb Lake is a Michigan water. Elevation runs to 1,033 feet. The water covers around 508 acres, which puts most of it out of reach from the bank. The margin runs to about 6.1 miles in total. It is among the larger waters listed here for Otsego County. You are 12 miles from Gaylord. Grand Rapids sits 160 miles out, and it is the nearest city worth the name. The county line is nowhere near, so one local authority covers the water.
Nothing we hold settles how deep this runs. The shallow end warms first and pulls fish in ahead of the rest. Where the bottom changes texture, fish gather; find that line. County-wide records name rock bass, white sucker, largemouth bass, northern pike and bluegill. The county list is broader than any single water. Thumb Lake gives up its fish to patience rather than distance.
Averages here run 67°F at the top of summer and 18°F at the bottom of winter. Seasons are distinct, and each one fishes differently. Ice is part of the season here, ending near mid April. Averages suggest open water from about mid April through to roughly early December. Reckon on open water from spring through to late autumn, with May and June the strongest. On Thumb Lake that shapes the whole year.
Our records carry no access rule either way. No dam controls it, and the level follows the season. Launch at Thumb Lake Boat Launch, half a mile from the water. The car has to stay half a mile away, which shapes how much tackle you bring. Mapping records toilets within half a mile. Gates get locked out of season on water like this. Barbless rules turn up on managed water more often than not. Failing this one, try Standard Lake, 1.5 miles away. For Thumb Lake in particular, ask before you travel.
82%
The bites are excellent 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 |
| 0.8 | 1.7 | 1 | 1.6 | 0.9 | 1.1 | 1.5 | 2.1 | 1.9 | 2.3 | 2.3 | 3.1 | 3.8 | 4.2 | 4.1 | 4.7 | 5.3 | 5.1 | 4.5 | 3.7 | 4.2 | 5.4 | 6.8 | 7.8 |
| 42° | 41° | 39° | 38° | 37° | 36° | 36° | 35° | 36° | 40° | 48° | 52° | 55° | 57° | 59° | 60° | 61° | 60° | 59° | 56° | 53° | 52° | 52° | 51° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 30.3 | 30.3 | 30.31 | 30.32 | 30.33 | 30.33 | 30.35 | 30.36 | 30.36 | 30.37 | 30.36 | 30.34 | 30.32 | 30.31 | 30.3 | 30.27 | 30.25 | 30.22 | 30.21 | 30.21 | 30.21 | 30.2 | 30.18 | 30.17 |
| 90 | 90 | 92 | 93 | 93 | 94 | 95 | 94 | 95 | 94 | 85 | 68 | 61 | 55 | 51 | 49 | 48 | 49 | 55 | 63 | 70 | 69 | 71 | 73 |
Sam
AI Fishing Assistant for Thumb 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