New Hampshire

Ashuelot River near Gilsum

Current River Rating

Fair · 61

Conditions are mixed. Review the details below before heading out.

Scores are model-specific and are not directly comparable across water types.

High confidence

Should I Go?

Consider

Recommended Window

Saturday, 3:00 PM–6:00 PM

Why

  • Air temperature is comfortable for a river trout trip.
  • Light wind should make casting and boat control easier.
  • Flow is outside this fishery’s preferred and acceptable ranges.

Favorable Factors

  • Recent precipitation has been light.

Cautions

  • Very clear skies may make trout more cautious in shallow water.

Timing Evidence

Window confidence: High

Current Readings

Flow
8.41 CFS
Gage Height
1.42 ft
Water Temperature
65.1 °F
Observation Time
Sep 5, 2026, 7:30 AM

Updated recently · USGS station 01157000 · Direct monitoring location

Readings from past 7 Days

Loading readings from the past 7 days…

Historical readings are provided for context. Readings outside the current freshness window are not used to rate current conditions.

Better Nearby Options

Checking nearby StrikeTracks waters…

Preliminary guidance only. Always assess current weather, access, water depth, current speed, and your own ability before entering the river.

Changing Conditions Advisory

Short-term rainfall and flow-change signals

Loading advisory…

Weather Near Gauge

Current Weather

Clear

Temperature

58°F

Feels like

57°F

Wind

3 mph N

Wind gust

8 mph

Current precipitation

0.00 in

Updated

Sep 5, 2026, 3:45 AM

Recent Rainfall

Estimated precipitation near this gauge

Last 6 hours

0.00 in

Last 24 hours

0.00 in

Last 48 hours

0.02 in

Little recent rainfall near this river.

Next 24 Hours

  • Sat 4 AM

    Clear

    Temp 58°F

    Chance 0%

    Precip 0.00 in

    Wind 3 mph

  • Sat 8 AM

    Clear

    Temp 62°F

    Chance 0%

    Precip 0.00 in

    Wind 3 mph

  • Sat 12 PM

    Mostly clear

    Temp 71°F

    Chance 2%

    Precip 0.00 in

    Wind 6 mph

  • Sat 4 PM

    Overcast

    Temp 73°F

    Chance 14%

    Precip 0.00 in

    Wind 5 mph

  • Sat 8 PM

    Drizzle

    Temp 61°F

    Chance 17%

    Precip 0.03 in

    Wind 10 mph

  • Sun 12 AM

    Overcast

    Temp 60°F

    Chance 11%

    Precip 0.00 in

    Wind 3 mph

Four-Day Forecast

  • Sat, Sep 5

    Rain

    High 74°F / Low 56°F

    Chance 25%

    Precip 0.17 in

    Max gust 22 mph

  • Sun, Sep 6

    Drizzle

    High 69°F / Low 51°F

    Chance 25%

    Precip 0.06 in

    Max gust 20 mph

  • Mon, Sep 7

    Overcast

    High 76°F / Low 47°F

    Chance 0%

    Precip 0.00 in

    Max gust 20 mph

  • Tue, Sep 8

    Overcast

    High 76°F / Low 54°F

    Chance 0%

    Precip 0.00 in

    Max gust 16 mph

Weather and rainfall are estimated for this river's coordinates. Local conditions can vary, especially in mountainous terrain and during isolated storms.

Recent rainfall can influence river flow, but the timing and magnitude depend on watershed size, soil conditions, upstream reservoirs, and dam releases.

Weather data: Open-Meteo

Historical Flow

Loading historical flow…

Fishing Overview

This stretch offers a mix of riffles, runs, and quieter pools that can hold trout through much of the season. Check the live flow and temperature readings above before planning a trip, and adjust your approach as conditions change.

Fishery Profile

Documented species you may encounter at Ashuelot River.

Medium confidenceLast verified: Jul 23, 2026

Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations

Fishery overview

Ashuelot River near Gilsum, the Monadnock-region freestone that closes the western New Hampshire blank between Contoocook and the Connecticut Valley. Brown, rainbow, and brook trout are the coldwater targets. USGS gage 01157000 provides live streamflow, stage, and water temperature at the Gilsum reach. This record represents the Gilsum gauge corridor, not every Ashuelot gage or the full watershed.

Target species

  • Brown Trout

    Salmo trutta

    Expectation
    Primary
    Population
    Stocked
    Native status
    introduced
    Confidence
    High confidence
    Stocked · Spring, FallSpring, Fall

    Primary trout target on the Gilsum Ashuelot freestone reach. Destination fisheryComposition remains mixed.

    Source: New Hampshire Fish and Game Department

  • Brook Trout

    Salvelinus fontinalis

    Expectation
    Common
    Population
    Unknown
    Native status
    native
    Confidence
    Medium confidence

    Brook trout occur in the Ashuelot system; colder tributaries hold stronger populations. No Gilsum-reach-specific wild or stocking classification is documented strongly enough for wild/stocked/established.

    Source: New Hampshire Fish and Game Department

  • Rainbow Trout

    Oncorhynchus mykiss

    Expectation
    Common
    Population
    Stocked
    Native status
    introduced
    Confidence
    High confidence
    Stocked · Spring, FallSpring, Fall

    Common stocked trout on the Gilsum Ashuelot reach.

    Source: New Hampshire Fish and Game Department

Fishery characteristics

Composition
Mixed wild and stocked
Great Lakes tributary
No
Flow regime
Natural flow

Monadnock-region freestone mainstem with stocked and wild trout components near Gilsum.

Best seasons

  • Spring
  • Summer
  • Fall

Common techniques

  • Fly fishing
  • Nymphing
  • Spinning
  • Streamers

Access and Public Fishing Rights

Road and corridor access patterns exist near Gilsum; confirm current public access on official NHFG places-to-fish pages and respect private land. Catalog coordinates are the USGS Gilsum gage point.

Stocking information

NHFG lists Ashuelot reaches among rivers stocked with trout. Confirm current stockings on the official NHFG stocking report.

  • Brown Trout

    Stocked · New Hampshire Fish and Game Department

    Stocked · Spring, Fall
  • Rainbow Trout

    Stocked · New Hampshire Fish and Game Department

    Stocked · Spring, Fall

Trout regulations can change by section. Verify current New Hampshire freshwater fishing regulations for the Gilsum Ashuelot reach before fishing.

Hatch Match

Seasonal insect activity for the current evaluation period — not a live hatch observation

Loading hatch suggestions…

Location and Access

USGS monitoring location

New Hampshire

Loading map…

The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.

Access, Parking, and Regulations

Verified access notes and official resources for Ashuelot River near Gilsum. This is StrikeTracks guidance — always confirm with official sources.

Loading access and regulations…