Get the appFishing index · by state
Idaho is defined by the Snake River system: big brown and rainbow trout in freestone rivers plus smallmouth and steelhead runs in the canyon reaches.
Boise River · Lucky Peak Reservoir
Weather data by Open-Meteo.com (CC BY 4.0). Index scores and water-temperature estimates are our own derivation from that data.
The score on each city card is computed from the local weather forecast for today. Open a city page for the full seven-day outlook, factor breakdown and recommended windows. Fishing rules in Idaho vary by water type and season, so always check the current regulations before you go.
Seasonally, Idaho's strongest month across 2 years of recorded weather at Boise is August — 87% of its days rate Good or better — and February is the weakest at 14%. That is roughly 167 good days a year. See the season report for the best time of year to fish in Idaho and every other state's month-by-month table.
Idaho is defined by the Snake River system: big brown and rainbow trout in freestone rivers plus smallmouth and steelhead runs in the canyon reaches. Use the city page below for a live weather-based index, then check the Idaho wildlife agency for seasons and limits.
Yes, anglers 16 and older need a Idaho fishing license. Buy through the Idaho state wildlife or natural-resources agency; rules can differ between freshwater and tidal water.
The LureScore index is an informational planning signal based on weather, not a guarantee of fish activity or a catch. Always follow local regulations.