reservoir
Koosharem Reservoir
Fairconditions▼ was Good yesterday
68°todayChance Showers And Thunderstorms
Today’s report
Koosharem Reservoir is a fair bet today. The DWR last stocked brown trout (2,021 fish) on October 1. This Afternoon's forecast: chance showers and thunderstorms, 68°F, 50% chance of precip.
- stocked 9 days ago — fresh fish in the water
- windy (S 22 to 26 mph)
Current conditions
Stocking
Last stocked Oct 1, 2026 — brown trout (2,021 fish).
| Date | Species | Quantity | Avg length |
|---|---|---|---|
| Oct 1, 2026 | brown trout | 2,021 | 3.82" |
| Oct 1, 2026 | rainbow trout | 8,570 | 3.48" |
| Mar 3, 2026 | rainbow trout | 3,001 | 9.32" |
| Nov 5, 2025 | rainbow trout | 1,947 | 10.39" |
| Oct 21, 2025 | rainbow trout | 3,009 | 7.85" |
| Oct 20, 2025 | brook trout | 835 | 13.27" |
| Oct 20, 2025 | tiger trout (brown × brook hybrid) | 1,980 | 5.46" |
| Oct 20, 2025 | rainbow trout | 6,000 | 4.92" |
Best time to fish Koosharem Reservoir
The DWR has stocked Koosharem Reservoir 36 times over the last 5 seasons, and 67% of those plants landed in March, April, October — the freshest fish and the easiest bite usually follow within a week or two of a stocking.
Species
brook troutcutthroat troutrainbow troutsplake (lake × brook trout hybrid)tiger trout (brown × brook hybrid)
Location
Nearby waters (within ~25 mi):
Big Lake — Monroe MtnSevier CountyToughFish LakeSevier CountyToughDeep Lake — Monroe MtnSevier CountyToughAnnabella Reservoir — Monroe MtnSevier CountyToughLost Creek Reservoir — Fishlake PlateauSevier CountyToughLower Box Creek Reservoir — Monroe MtnPiute CountyToughUpper Box Creek Reservoir — Monroe MtnPiute CountyToughRex Reservoir — Fishlake PlateauSevier CountyTough
Regulations
No water-specific rules listed for this water in the current Utah Fishing Guidebook — statewide general rules and daily limits apply (trout limit 4, combined). Verify in the current guidebook before you fish.
This week’s weather
This Afternoon
68°F
Chance Showers And Thunderstorms
50% precip
Tonight
46°F
Showers And Thunderstorms
98% precip
Sunday
64°F
Showers And Thunderstorms then Chance Showers And Thunderstorms
97% precip
Sunday Night
42°F
Showers And Thunderstorms
76% precip
Columbus Day
58°F
Showers And Thunderstorms
92% precip
Monday Night
37°F
Showers And Thunderstorms
92% precip
Tuesday
51°F
Slight Chance T-storms
90% precip
Tuesday Night
31°F
Rain And Snow Showers Likely
65% precip
Wednesday
52°F
Chance Snow Showers then Chance Rain Showers
32% precip
Wednesday Night
32°F
Slight Chance Rain Showers then Partly Cloudy
18% precip