Grassy Lake Reservoir
Sanpete County · Central region
Current conditions
Stocking
Last stocked Jul 20, 2026 — rainbow (499 fish).
| Date | Species | Quantity | Avg length |
|---|---|---|---|
| Jul 20, 2026 | rainbow | 499 | 10.28" |
| Jul 8, 2026 | rainbow | 500 | 10.77" |
| Jun 16, 2026 | rainbow | 994 | 9.63" |
| May 12, 2026 | tiger trout | 2,860 | 2.96" |
| Jul 17, 2025 | rainbow | 872 | 11.07" |
| Jul 17, 2025 | rainbow | 622 | 11.07" |
| Jun 10, 2025 | tiger trout | 2,530 | 2.96" |
| Jun 10, 2025 | rainbow | 1,008 | 9.87" |
Species
rainbow trouttiger trout
Forecast
This Afternoon
80°F
Slight Chance Showers And Thunderstorms
18% precip
Tonight
60°F
Partly Cloudy
Thursday
80°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
Thursday Night
60°F
Partly Cloudy
Friday
79°F
Mostly Sunny then Chance Showers And Thunderstorms
39% precip
Friday Night
57°F
Chance Showers And Thunderstorms
28% precip
Saturday
74°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
71% precip
Saturday Night
55°F
Slight Chance Showers And Thunderstorms then Mostly Cloudy
24% precip