reservoir

Newcastle Reservoir

Iron County · Southern region

Goodconditions
84°todaySunny

Today’s report

Newcastle Reservoir is fishing well today. The DWR last stocked rainbow trout (2,500 fish) on September 21. Today's forecast: sunny, 84°F.

Current conditions

Stocking

Last stocked Sep 21, 2026 — rainbow trout (2,500 fish).

DateSpeciesQuantityAvg length
Sep 21, 2026rainbow trout2,5009.64"
Oct 2, 2025rainbow trout4,0607.52"
Sep 30, 2025rainbow trout8,1207.52"
Sep 24, 2025rainbow trout8,1787.52"
Sep 16, 2025wiper (white × striped bass hybrid)2,9992.4"
Jul 30, 2025wiper (white × striped bass hybrid)2,0002.57"
Jul 2, 2025brown trout4,2385.45"
Sep 25, 2024rainbow trout20,0027.03"

Best time to fish Newcastle Reservoir

The DWR has stocked Newcastle Reservoir 27 times over the last 6 seasons, and 78% of those plants landed in July, September, October — the freshest fish and the easiest bite usually follow within a week or two of a stocking.

Species

brown troutblack crappierainbow troutwiper (white × striped bass hybrid)

Location

37.64810, -113.52180 · Iron County · 25 mi from Cedar City

Nearby waters (within ~25 mi):

Lamb LakeDaggett CountyFairParadise ReservoirUintah CountyFairEnterprise Reservoir, LowerWashington CountyToughEnterprise Reservoir, UpperWashington CountyToughPine Valley Reservoir — Pine Valley MtnWashington CountyFairBaker ReservoirWashington CountyWarning

Regulations

  • Limit 2 wiper.

Special rules from the 2026 Utah Fishing Guidebook. Statewide daily limits apply to anything not listed. Rules change — always verify in the current guidebook before you fish.

This week’s weather

Today
84°F
Sunny
Tonight
54°F
Mostly Clear
Tuesday
82°F
Sunny
Tuesday Night
52°F
Mostly Clear
Wednesday
83°F
Sunny
Wednesday Night
53°F
Clear
Thursday
83°F
Sunny
Thursday Night
53°F
Mostly Clear
Friday
82°F
Sunny
Friday Night
54°F
Mostly Clear