What flies are hatching on the Flathead River right now?

Current and seasonal hatches on the Flathead River include Salmonfly, Golden Stone, Caddis. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Flathead River?

The Flathead River is running at 665 CFS at the At Columbia Falls gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Flathead River fishable today?

Flathead River is outside its fishable window right now. Flow is 665 CFS at the At Columbia Falls gauge. Check back when conditions return to the normal range.

Flathead River Fly Fishing Conditions

Live Conditions

Flathead River — At Columbia Falls

Unfishable

665CFS

Discharge

1.72ft

Gauge Height

—

Water Temp

Updated 26 min agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

27.09 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

38°FClear sky

Wind 5 mph27.09 inHg Low & stable

Tough conditions — fish deep

Today

🌦️

Drizzle

43° / 37°

0.03"

Tomorrow

☁️

Overcast

45° / 33°

Tue

🌫️

Foggy

52° / 31°

Wed

☁️

Overcast

49° / 32°

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

2

Time of Day

Using: 665 CFS · Midges. BWOs on mild afternoons. Most stretches beginning to freeze. Late-season fishing very limited.

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Flathead River conditions.

🪰 Hatch Calendar

Flathead River · November · Late Fall

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

Select month

JanDec

Midges. BWOs on mild afternoons. Most stretches beginning to freeze. Late-season fishing very limited.

Blue-Winged OliveMidge

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About Flathead River

Three forks (North, Middle, South) draining Glacier National Park and the Bob Marshall Wilderness before joining at Kalispell. Native Westslope Cutthroat, federally protected Bull Trout, and clear glacial-blue water in a Wild & Scenic corridor.

SalmonflyGolden StoneCaddisPale Morning DunHopperBlue-Winged Olive

Regulations

Bull trout federally protected — release immediately and unharmed. Native Westslope Cutthroat catch-and-release in many stretches. Wild & Scenic corridor — check current FWP regulations.

Learn More

Guides to help you fish Flathead River with more confidence.