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Mount Flume

#25 of 48Moderate

4,328 ft | Franconia | 3 routes

New Hike
26°F / Feels 11°F
24 mph NW
ConditionsDifficult
At the summit, Oct 17, 3:20 AM ET

As of October 17, 2026

Trail conditions on Mount Flume are currently rated Difficult. At 3:20 AM ET it was 26°F at the summit (4,328 ft), feeling like 11°F, with NW winds at 24 mph. The shortest of 3 listed routes is Flume and Liberty Loop: a 9.4-mile loop with 3,539 ft of elevation gain, taking about 5-8 hours. Mount Flume (4,328 ft) is #25 of 48 on the NH 48 list. See the hour-by-hour Mount Flume weather forecast for summit temps, wind chill, and the best hiking window.

Routes

Flume and Liberty Loop

Most demanding
9.4 mi
3,539 ft
5-8 hours
Community

Mount Flume via Osseo Trail

Hard

Trail Map

Today's Conditions

Updated Oct 17, 3:20 AM ET

Current Weather

26°F

Feels like 11°F

Foggy
24 mph NW · Gusts 44 mph
98% humidity

Recent Precipitation

Rain: 0.06" (24h) · 0.58" (48h)

Snow: 0.3" (24h) · 0.3" (48h)

AI Trail Conditions

Difficult
AI Synthesized
medium confidence

Conditions summary as of October 17, 2026

Fresh snow, ice, and a hard freeze have set in on all trails after the cold front, with sub-freezing temperatures from trailhead to summit and gusty NW winds on the upper mountain. Flume's wet slide slabs and summit area will be icy and slick, and fog will limit visibility, so Saturday is a poor day for this objective. Sunday looks calmer with winds easing, but trails will remain icy until daytime warming.

Expect about 27\u00b0F at the trailhead dropping to near 18\u00b0F at the summit, with winds increasing from about 23 mph to 42 mph and wind chill near -4\u00b0F up top. The freezing line reaches trailhead level, so ice is possible from the start; start with a warm base and mid layer, carry a windproof shell and extra insulation, and add layers before leaving sheltered forest near the upper ridge.

Best Hiking Window

Sunday is the better of the two days: winds are forecast to ease and skies to clear, but still plan an early start and expect icy trails until midday warming. Saturday is not recommended, and if hiking then, stay low and on forested trails in the late morning to early afternoon.

Hazards
Verglas and fresh snow on rock slabs, especially the Flume Slide Trail, which was already described as difficult when wet
Strong NW winds (24 mph, gusts to 44 mph at summit) with wind chill near -4 to 11°F raising frostbite and hypothermia risk
Fog and upslope snow reducing visibility and making navigation harder
Icy trails at all elevations as the freezing line drops to trailhead level
Short daylight (about 11 hours) with little margin for slowdowns on icy terrain
Hikers underdressed for the trailhead-to-summit temperature drop, then overheating and sweating on the climb
Recommended Gear
Microspikes (crampons for icy slabs)
Insulated waterproof gloves plus spare mittens
Insulated shell jacket and warm hat
Balaclava or face protection
Goggles or sunglasses for blowing snow
Traction-friendly boots with good ankle support
Headlamp with spare batteries
Hand and toe warmers
Insulated water bottle or hydration tube insulation
Navigation backup (map, compass, GPS) for foggy conditions

Full winter gear list →

Last synthesized Oct 17, 3:20 AM ET

Planning a hike here this week?

Trailblazer adds the full 7-day summit forecast, the best day to go for every peak, and conditions for each route up.

Recent Trail Reports

10
View all on NETC
Sep. 18, 2026by Uki

Trail: Bike path, Liberty Spring Trail, Franconia Ridge Trail

Conditions: Dry Trail, Wet Trail, Wet/Slippery Rock, Mud - Minor/Avoidable

“Our original plan was Lincoln and Lafayette but I checked the winds again early this morning and they were higher than we wanted to deal with so we pivoted. This was an excellent call. Both summits (and Liberty again on the return trip) were socked in and quite windy. Last night's rain made everything wet. All the rocks were wet and the trail was muddy in areas. Despite that, we still had pretty good footing all the way up. We layered up right before the summit of Liberty and then delayered once we got back down. There are some muddy stretches between the 2 peaks. There are rocks in the mud to step on but you need longer legs to get them all. We picked our way through as best we could. The clouds were nice and moody and we had a great time catching up. This was a most excellent day spent with my friend. Lots of happy friendly hikers all along the way as well as quite a few headed to the tent site for the night.”

Sep. 4, 2026by Jean-Marc Lapierre

Trail: Liberty Spring Trail, Flume Slide Trail, Franconia Ridge Trail

Conditions: Dry Trail, Wet Trail, Wet/Slippery Rock, Standing/Running Water on Trail, Mud - Minor/Avoidable

“Did the loop today, up the slide and down Liberty Spring. The trails were wet from the rain yesterday. The trails are in good condition, with the exception of the fallen tree on Flume Slide at mile 2. I met a few people after summiting Flume, but was by myself all the way up the slide (I like that :-). Still many thru hikers coming up Liberty Spring. Looks like a busy weekend is upon us in the White Mountains”

Sep. 4, 2026by Scott

Trail: Old Bridle Path, Greenleaf Trail, Franconia Ridge Trail, Liberty Spring Trail, bike path

Conditions: Dry Trail, Wet Trail, Mud - Minor/Avoidable

“Rocks were wet but grippy for the most part. Trails are in great shape. No views on Lincoln or Lafayette this morning. Flume and Liberty were on and off with clouds moving through. To the person who left their or their dog’s feces in a green bag near the top of Lincoln, what a classy move. A great morning to be out in the fog and clouds. Rain held off which was nice.”

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Trail reports across the Whites this week · Trailhead parking

What to bring

From the summit forecast, Sat to Mon

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  • 61 mph

    Summit gusts

    Plan a below-treeline hike

    Daytime gusts near 61 mph above treeline. Pick a sheltered route or another day.

  • 18°F

    Summit low

    Microspikes

    Summit lows near 18°F, so expect ice on rock and the upper trail.

    Kahtoola Microspikes at Backcountry.com ($89.95)
  • -3°F

    Wind chill

    Face covering, mittens and goggles

    Wind chill down to -3°F above treeline.

    Balaclavas at Amazon

The rest of the list: Winter gear guide · How I pick gear

Conditions synthesized from: NWS Higher Summits Forecast, NOAA Open-Meteo, Mount Washington Observatory, NETC Trip Reports, NOHRSC Snow Depth.

Get condition updates for Mount Flume

About Mount Flume

Southern peak of Franconia Ridge, close to Flume Gorge. Often combined with Liberty.

Elevation

4,328 ft

Range

Franconia

Rank

#25 of 48

Difficulty

Moderate

Coordinates

44.1088, -71.6280

Nearby Peaks

Mount Liberty

Moderate

4,459 ft · Franconia

0.9 mi away

Owl's Head

Very Difficult

4,025 ft · Franconia

2.7 mi away

Mount Lincoln

Difficult

5,089 ft · Franconia

2.9 mi away

Mount Pemigewasset

Moderate

2,557 ft · Franconia

3.6 mi away

Mount Lafayette

Difficult

5,260 ft · Franconia

3.7 mi away

Track your NH 48 progressExplore all peaks

Trip Reports

Been to Mount Flume?

Be the first to share your experience!

10.5 mi
3,122 ft
5-9 hours

Pemi Loop

Most demanding
31.7 mi
9,215 ft
16-25 hours

Trails that reach the summit

Franconia Ridge Trail (4.5 mi)

,
Mt. Washington Avalanche Center,
USGS Stream Levels,
OpenWeather Air Quality

AI-generated from public data. Always verify conditions before heading out — backcountry weather can change quickly.

  • OverviewRated difficult
  • Weather26°F, gusts 44
  • Best timeJun–Sep
  • Safety5 incidents

Recorded incidents on this peak

5 incidents on file · drawn from NH Fish and Game releases and regional reporting

  1. Mar 19, 2026·RescueFalling ice· Flume Slide

    Casey Cullinan, 30, of Warwick, RI, and William Becker, 30, of Hope Valley, RI

    Two hikers became stranded near the top of the Flume Slide on March 19, 2026, due to extremely icy trail conditions that prevented them from ascending or descending. They had micro spikes but not crampons, and had already spent one night camping. Mountain Rescue Service and Pemi Valley Search and Rescue Team used ropes, crampons, and harnesses to lower the hikers to safety, returning to the trailhead at 11:10 p.m.

    NH Fish and GameFull record
  2. Jul 15, 2025·RescueMedical· Franconia Ridge Trail / Osseo Trail

    43-year-old male hiker from Kingston, NH

    Christopher Ricca, 43, of Kingston, NH, began suffering from heat-related illness on Wednesday evening while hiking the Pemi Loop between Mt. Liberty and Mt. Flume with his nephew. His nephew hiked out via the Osseo Trail to summon help while Ricca attempted to continue on his own. Conservation Officers and PVSAR members reached Ricca at the summit of Mt. Flume and carried him out via the Osseo Trail, with Ricca reaching the parking lot at approximately 6:20 p.m. on July 17, 2025.

    NH Fish and GameFull record
  3. May 11, 2024·RescueNavigation error· Flume Slide Trail

    Jonathan Long, 26, leading three youths ages 13-14 from the Boston, MA area

    The group was descending the Flume Slide Trail about 3 miles from the trailhead but could not continue because they had no lights and no overnight gear. Because of cold temperatures and the group's unprepared state, a rescue was initiated; officers provided lights and food so they could descend.

    NH Fish and GameFull record
Show 2 older incidents
  1. Jun 12, 2023·RescueFall· Flume Slide Trail

    52-year-old male from Canton, MA

    On June 12, 2023, a 52-year-old Massachusetts man slipped on wet rocks and fell approximately 15 feet while ascending Flume Slide Trail about 3.5 miles from the bike path. Two Conservation Officers and Pemi Valley Search and Rescue Team volunteers responded, but the hiker was ultimately able to self-evacuate to the trailhead. He was transported by ambulance to Littleton Regional Healthcare for treatment of serious injuries.

    NH Fish and GameFull record
  2. Apr 30, 2014·RescueMedical

Most-named locations: Flume Slide, Franconia Ridge Trail

All 5 by trail & year
· Franconia Ridge Trail

22-year-old male from Acton, Massachusetts

Benoit Armangau, age 22, accidentally stabbed himself in a lower extremity while cutting evergreen boughs for bedding near the summit of Mt. Flume on April 30, 2014, leaving him unable to walk unassisted. Conservation Officers reached the pair at 1:45 a.m. on May 1 amid snow depths up to two feet and cold rain, stabilizing the injury overnight. Rescuers and volunteers evacuated him to the Liberty Spring Trailhead by approximately 1:30 p.m. on May 1.

NH Fish and Game (archived)Full record