South Fork Boise River

October 3, 2025

South Fork Boise River

Current conditions for South Fork Boise River · Map, access and gauges

Water Temp

49°F · Prime temp

Observed

29d ago

Conditions

Water temperature at Neal Bridge sits at a prime 49°F, ideal for fall trout. The South Fork is running at manageable levels that make wading comfortable. Smaller mayfly patterns dominate right now—BWO and Baetis are the main course, with PMDs, pinks, midges, and caddis filling out the menu. Expect consistent large trout in the mix.

Gauges

Recommended flies

#16-18 Pink Hackle Stacker#18 Stacked Hackle Callibaetis#14-16 Blowtorch#16-18 Spanish Bullet#6-8 Restless Stone#14 Rosa Red Tag#12-14 Frenchie#8-10 Elk Hair Caddis#8-10 Burkus October Caddis#14-16 Corn Fed Caddis#18-20 Last Chance Cripple BWO

This report covers one day. See today’s bite forecast for South Fork Boise River.