Livingston / Paradise Valley
Yellowstone River
Live Conditions
Yellowstone River — At Corwin Springs
7-Day Flow
→ Stable
24-Hr Pressure
25.61 inHg · → High/stable
Voluntary Catch-and-Release Advisory
Water temperature is at or above 65°F. At these temperatures trout are physiologically stressed and have a higher post-release mortality rate. Consider waiting for cooler conditions — early morning or evening — or choosing a tailwater with regulated temperatures.
Local Weather
Tough conditions — fish deep
Today
🌤️Mainly clear
90° / 63°
Tomorrow
☁️Overcast
71° / 53°
Tue
☀️Clear sky
77° / 49°
Wed
☀️Clear sky
87° / 52°
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
⚡ AIAI-powered recommendation using today's live flow, temperature, and hatch data.
4
Time of Day
Using: 2,630 CFS · 65.3°F · PMDs continue. HOPPER SEASON peak
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Yellowstone River conditions.
🪰 Hatch Calendar
Yellowstone River · August · Late Summer
🟢 Active now at 65.3°F water
🟡 Approaching — within 5°F of trigger range
Select month
PMDs continue. HOPPER SEASON peak (size 8-12) — Paradise Valley grasshoppers hammer the banks. Caddis evenings. Hot afternoons — hoot-owl restrictions common on the lower Yellowstone. Fish dawn and dusk.
🟢 Active · 🟡 Approaching · ⚪ Seasonal only
River Map
About Yellowstone River
Longest free-flowing river in the lower 48 — undammed from Yellowstone Park through Paradise Valley to the plains. Wild Yellowstone Cutthroat, browns, and rainbows in classic riffle-pool freestone water.
Regulations
Standard Montana trout regulations apply on the Yellowstone; native Yellowstone Cutthroat are the species of concern, and catch-and-release is strongly encouraged for wild cutthroat. Montana fishing license required. Verify current regs at fwp.mt.gov before fishing.
Learn More
Guides to help you fish Yellowstone River with more confidence.
Montana Fishing Regulations for Fly Anglers
Montana's Conservation License prerequisite and AIS pass, the third-Saturday-in-May to November 30 general stream season, blue-ribbon special regs on…
Trout Species of Montana
Montana's six salmonids and how to tell a harvestable brown from a release-required cutthroat or a protected bull trout. Missouri and Yellowstone…
Seasonal Guide to Montana Fly Fishing
Montana rivers are a completely different game each season — Salmonfly in late May, PMD and caddis in July, technical Trico on the Missouri in…