Cooling NH streams set up a good fall trout window

What's biting

What's next

Flows are low and clear at all three gauges that reported discharge, with 01073500 at 13.5 cfs. Expect trout to stack in deeper pools and the soft seams beside faster current. Slow, quiet presentations and longer leaders should outperform heavy-handed approaches in water this thin.

With a New Moon today, nights are dark and the best bite windows should cluster around first light and the last hour before dusk. Darker nights often push fish to feed more in low-light hours, so plan short, focused sessions at dawn rather than a midday slog.

MidCurrent's Tying Tuesday notes call for small, low-contrast patterns on overcast days, such as a beaded purple nymph, and pine squirrel jigs that bounce the bottom without hanging up. Both ideas fit the clear, low water we're reading. If rain arrives and flows climb, the bite for Brown Trout often improves as water colors up slightly.

Context

Mid-October is on schedule for the fall transition in southern and central New Hampshire. Streams have shed their summer warmth, and trout that sulked through August are moving and feeding again. Brook Trout and Brown Trout approach spawning condition in the coming weeks, so check state regulations for seasonal closures and catch-and-release rules on specific waters.

Large lakes cool more slowly than streams. Smallmouth Bass generally slide toward rocky structure and deeper edges as temperatures keep dropping, and the bite often slows through November. Lake Trout typically begin moving shallower in fall as the water cools, though we would treat that as a seasonal pattern rather than a current report.