Idaho Fishing Reports ยท Lakes ยท Southwest Region
Arrowrock Reservoir above Boise has rainbows, kokanee, smallmouth and bull trout.
Looking for the latest Arrowrock Reservoir fishing report? This page is updated by the AvidMax fly shop team with current conditions, wind, stocking news and the flies working now at Arrowrock Reservoir.
Water level
Wind forecast
Arrowrock Reservoir fishing report
Updated November 7, 2026.
The reservoir is low.
Streamers near the river inlets.
Stocking report
See the Idaho Fish and Game fish stocking schedule for the latest stocking at Arrowrock Reservoir and other Idaho waters.
Load your fly box
Before you head to Arrowrock Reservoir, bring: Woolly Bugger #6-8, Clouser Minnow #4-6, Balanced Leech #10-12, Balanced Bou Leech #10-12, Slump Buster #6-8, Egg #12-14, Scud Bomb #12-16, Pitching Leech #10, Circus Peanut #4.
Flies working right now
The flies above that we have in stock right now.
Arrowrock Reservoir lake details
| Access | Ramps along the Middle Fork Road. |
|---|---|
| Elevation | About 3,200 ft |
| Nearest town | Boise, Idaho |
| Best season | Spring through fall |
| Fish | Rainbow and bull trout, kokanee, smallmouth |
| Regulations | Bull trout must be released. Check the Idaho Department of Fish and Game rules before you go. An Idaho fishing license is required for anglers 14 and older, plus a steelhead or salmon permit where those fish are targeted. |
| Leaders and tippet | 9 ft leaders, 3X |
| Ice fishing | Not usually ice-fished. |
| Camping | Campgrounds along the Middle Fork Road |
| Kids | Partly. |
| Good to know | Water levels change a lot. |
Fishing by season
Winter
Quiet.
Spring
Trout.
Summer
Smallmouth.
Fall
Trout.
How to get there
From Boise, take State Highway 21 and the Middle Fork Road.