An even grey lid over the water, with a mirror surface most of the day and pressure easing off. Activity on Grass Lake should centre on the shallows early and the drop later. The strongest window runs from the day. Stay mobile and follow the activity. A properly cold day, so expect slow, deliberate fishing.
The bites are excellent now
Night
Grass Lake belongs to Wayne County, Utah. Beyond the shoreline you have mixed forest. Around 42 acres of surface means several distinct areas to work. It ranks high for size among our Wayne County listings. Monroe lies 44 miles from the water. Richfield is 50 miles away, with Aurora at 55 miles. It sits well inside the county, so one set of rules covers it.
We hold no depth figure for this one. The shallow end warms first and pulls fish in ahead of the rest. A soft bed grows weed late into autumn, which keeps fish shallow. Reported across Wayne County: Arctic grayling, bluehead sucker, flannelmouth sucker and brook trout. County records show the wider picture rather than this one place. Grass Lake responds to conditions more than to tactics.
The seasonal spread runs 20°F to 59°F. Winter shuts the surface down for months. Hard water holds through the cold months, breaking up near early May. Climate averages put the opening at about early May and the closing near late November. Fishing peaks soon after break-up and again before the cold returns. Time your trip to Grass Lake by conditions rather than dates.
Access status is simply unknown for this water. Public mapping marks it as seasonal water rather than permanent. There is no mapped parking or launch nearby, which keeps numbers down. For the trout, small spinners and a box of nymphs cover both approaches. Local rules can differ across the county line, so check where you stand. Close seasons apply to some species and not others. Cook Lake, 1.6 miles away, makes the obvious fallback. Check the current arrangement for Grass Lake.
81%
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 | 2.4 | 2.7 | 3.2 | 2.1 | 2.4 | 2.2 | 2.4 | 2.8 | 1.4 | 3.1 | 4.5 | 3.6 | 2.2 | 2 | 1.8 | 3 | 2.2 | 1.6 | 1.8 | 0.8 | 0.4 | 0.6 | 1.1 |
| 29° | 28° | 28° | 27° | 26° | 26° | 25° | 25° | 28° | 32° | 35° | 37° | 39° | 39° | 40° | 40° | 39° | 37° | 35° | 34° | 33° | 33° | 32° | 32° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 30.1 | 30.09 | 30.1 | 30.1 | 30.1 | 30.11 | 30.12 | 30.12 | 30.15 | 30.14 | 30.14 | 30.12 | 30.09 | 30.09 | 30.07 | 30.06 | 30.06 | 30.07 | 30.09 | 30.11 | 30.14 | 30.15 | 30.16 | 30.16 |
| 73 | 72 | 71 | 72 | 72 | 71 | 71 | 70 | 67 | 65 | 63 | 62 | 61 | 62 | 60 | 61 | 65 | 72 | 75 | 78 | 77 | 79 | 80 | 80 |
Sam
AI Fishing Assistant for Grass 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