Upper Stillwater Reservoir
Duchesne County · Northeastern region
Current conditions
Stocking
Last stocked Jul 16, 2026 — brook trout (7,319 fish).
| Date | Species | Quantity | Avg length |
|---|---|---|---|
| Jul 16, 2026 | brook trout | 7,319 | 3.45" |
| Jun 2, 2026 | brook trout | 3,004 | 3.12" |
| Jun 13, 2025 | brook trout | 3,001 | 3.63" |
| Aug 19, 2024 | brook trout | 3,036 | 4.67" |
| Jul 19, 2023 | brook trout | 3,004 | 3.09" |
Species
brook trout
Forecast
This Afternoon
81°F
Slight Chance Showers And Thunderstorms
19% precip
Tonight
55°F
Partly Cloudy
Thursday
82°F
Mostly Sunny then Chance Showers And Thunderstorms
35% precip
Thursday Night
56°F
Partly Cloudy
Friday
83°F
Mostly Sunny then Chance Showers And Thunderstorms
48% precip
Friday Night
57°F
Chance Showers And Thunderstorms
25% precip
Saturday
77°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
73% precip
Saturday Night
53°F
Chance Showers And Thunderstorms
32% precip