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Trail conditions are for informational purposes only. Hiking involves inherent risks. Always verify conditions with official sources and use your own judgment. Use at your own risk.

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  1. Peaks
  2. /
  3. Mount Jefferson

Mount Jefferson

#3 of 48Very Difficult

5,712 ft | Presidential | 1 route

New Hike
37°F / Feels 29°F
11 mph WNW
ConditionsDifficult

As of August 29, 2026

Trail conditions on Mount Jefferson are currently rated Difficult. It's 37°F (feels like 29°F) with WNW winds at 11 mph. The listed route, Presi Traverse, is 19.4 miles point to point with 8,301 ft of elevation gain, taking about 11-17 hours. Mount Jefferson (5,712 ft) is #3 of 48 on the NH 48 list. See the hour-by-hour Mount Jefferson weather forecast for summit temps, wind chill, and the best hiking window.

Mount Jefferson weather forecast

Hourly summit temps, wind chill & freezing level, trailhead to summit

View →

Today's Conditions

Updated Aug 29, 7:20 AM

Current Weather

37°F

Feels like 29°F

Clear sky
11 mph WNW · Gusts 18 mph
90% humidity

Elevation Forecast

Today
Summit 5,712'
45°/50°F26mphWC 36°☀️
5,000'
46°/53°F26mphWC 37°☀️
4,100'
47°/55°F25mphWC 39°☀️
3,300'
48°/58°F23mphWC 40°☀️
2,500'
50°/61°F17mphWC 44°☀️
Trailhead
51°/63°F14mph☀️

~3.4°F drop per 1,000ft

AI Trail Conditions

Difficult
AI Synthesized
high confidence

Conditions summary as of August 29, 2026

Saturday offers a dry, mostly sunny window on Mount Jefferson, but this remains a serious undertaking given the extreme exposure of the Adams-Jefferson ridge traverse and persistently strong summit winds. Sustained 25-30mph winds with gusts near 50mph and wind chills in the 20s-30s along the exposed 1.2-mile ridge demand full winter-weight wind protection even though it's late August. Conditions deteriorate Sunday with near-tropical-storm-force gusts and increasing fog, so Saturday is clearly the better day to go.

Expect a mild trailhead start near 51-63°F but a dramatic shift by treeline (~4,000ft) where winds jump to 25mph and wind chill drops to the upper 30s°F; above treeline to the summit, winds hold near 26mph with wind chill around 36°F, so plan to add wind/insulating layers at the treeline transition and be ready to shed them again on descent.

Best Hiking Window

Saturday, early morning through early afternoon (roughly 6:30 AM to 2:00 PM) to complete the exposed ridge before afternoon cloud increase and before Sunday's forecast high winds and fog arrive

Hazards
Sustained strong winds (25-30mph) with gusts to 50+ mph along exposed ridge
Wind chills in upper 20s to mid-30s°F above treeline despite mild valley temps
Loose rock scrambling on exposed summit cone
Wet, slippery rock from recent light precipitation
Reduced visibility possible if afternoon clouds or fog develop
Limited bailout options once committed to the exposed Adams-Jefferson ridge traverse
Recommended Gear
Windproof/waterproof shell (jacket and pants)
Insulating mid-layer for summit and ridge
Warm hat and gloves
Sturdy trekking poles for wind stability and loose rock
Sun protection (sunscreen, sunglasses)
Extra warm layers for wind chill even though air temps are moderate
Headlamp as a precaution given exposed terrain time

Last synthesized Aug 29, 7:20 AM

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
Jul. 18, 2026by Nordic_Gal, Danielle

Trail: Caps Ridge Trail, Jefferson Loop, Gulfside, Edmands Col Cutoff, Randolph Path, The Cornice, Castle Trail, The Link

Conditions: Dry Trail, Wet Trail, Wet/Slippery Rock, Standing/Running Water on Trail

“This was an interesting day nice weather, wild fire smoke and then big wind, hail and rain. We decided to do trail work clearing the nearly completely grown in Edmands Col Cutoff. Hike up Caps was good, rocks dry and the sky was weird with haze sometimes the sun would come out and then it was gray and weird. We saw a few dozen people up and over Jefferson, people making their way to Lakes of the Clouds from Madison hut too. The trail is now clear from the Col for about 600 feet. The spring was running well. The trail is overgrown the footbed in not visible, thankfully some big rocky areas give a hiker a moment out of the scrub. We dreamed of making it to the scree field but that is going to take another 2 or 3 hours to get it done. Everything was dandy and we were watching the weather and made the decision to leave to get back by 3. Well no surprise weather arrived early and we were on The Cornice when it hit and hit hard. 50mph gusts and steady hard rain starting with hail and then rain, it was difficult to and we questioned what kind of idiots would go hiking in this weather. Instinctively we headed down Castel Trail to get the heck below treeline asap. Castle Trail and The Link were in nice condition and under the tree cover we still often found dry rock. We were happy to see that The Link is being well cared for (this was our first trail recovery clearing project we did together). It was dark in the trees. Back at the car we were glad we had towels and a change of clothes. We carpooled together from Cannon's Peabody Lodge parking lot and upon our return we discovered that the Cannonball Pub is open friday thru Sunday. We made it inside just before last call at 5 pm! What a day in the mountains.”

Jul. 18, 2026by Uki

Trail: Caps Ridge Trail, Gulfside, Westside Trail, Crawford Path, Monroe Loop, Ammonoosuc Ravine Trail

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

“When a friend asks you to join them for a special anniversary to mark exactly one year since they hiked their first 4K in the Whites, you always say yes. We put together a plan to grab Jefferson for my G2 and then make our way over to Monroe for his anniversary hike but bypass Washington because I was dying to check out the Westside trail. It was a most excellent plan. Caps Ridge was dry for our ascent. The winds really picked up at the summit and it began to rain. We said goodbye to 2 of our crew at that point and the 3 of us continued on. Gulfside was mostly dry as the rain was light and the rocks were still grippy. By the time we hit the Sphinx Col, the rocks were wet. We were cautious ascending and going around Clay. The rain stopped again as we reached the Westside Trail junction. This was the jewel of the day. We saw no one and the views were endless and the winds were enough to push us around without knocking us sideways. Once we reached Crawford Path the rain began again and the trails were much busier. The footing was still good and there were only a few slips on the wet rocks. We quickly grabbed Monroe with a stop at the hut. The rain picked up again as we descended Monroe and by the time we were headed down Ammo, it was raining harder and everything was very wet. The rocks and slab were super slippery and required careful footing and slow going. We made it the Gem Pool in one piece. The remaining portion of Ammo to the parking lot was a mud fest. The mud was deep in places and incredibly slick. We all agreed we missed the old Ammo trail a lot today. The re-route has terrible footing and seems to take forever. Fortunately the company was great and we laughed and told stories and it was a great day despite the tough conditions and the weather. I am so grateful for good friends who can embrace the suck for these kind of days.”

Jul. 17, 2026by Jesse Graham

Trail: Castle Ravine Trail, Castle Trail

Conditions: Dry Trail, Mud - Minor/Avoidable

“Very foggy and windy near summit late morning, but eventually became clear and sunny by early afternoon. Chilly on summit with high winds and temperatures in the mid to high thirties. Saw total of about ten other hikers above tree-line over the course of the day.”

3-Day Mountain Forecast

Tap a day header to expand to 3hr or hourly detail

Today
Aug 29
Tomorrow
Aug 30
Monday
Aug 31
AMPMnightAMPMnightAMPMnight
Temperature & Wind
Weather
sunny
sunny
cloudy
cloudy
rain
drizzle
sunny
sunny
cloudy
Temp °F
hi / lo
46°
45°
47°
45°
50°
48°
48°
47°
50°
48°
50°
47°
46°
46°
50°
48°
51°
49°
Chill °F39°37°38°36°39°37°39°44°45°
Wind
mph
13
WNW
20
W
39
W
43
W
36
WSW
35
NW
17
NW
8
WNW
10
W
Gust
mph est.
21326260585626——
Precipitation
Precip
in (rain/snow)
-
-
-
-
0.4
0.1
-
-
-
Freezing
ft
12,256 ft11,685 ft13,201 ft
Conditions
Cloud
cover
--100%100%100%100%--100%
Vis
mi
10clearclear9<0.1clearclearclearclear
UV57—46—57—
Elevation Profile — Conditions by Altitude

Tap a day header to expand AM/PM/Night detail

Elevation
Today
Aug 29
Tomorrow
Aug 30
Monday
Aug 31
lo/hi °F · wind mph & dir · chill °F
Summit
5,712 ft
45/46°
13
39°
47/48°
43
36°
46/46°
17
39°
5,000 ft
46/47°
14
40°
50/52°
42
41°
49/50°
12
44°
4,100 ft
47/48°
13
41°
53/55°
38
53/54°
9
3,300 ft
48/51°
13
43°
56/58°
31
55/59°
7
2,500 ft
50/55°
9
46°
59/61°
19
53/63°
6
Trailhead
2,000 ft
51/57°
8
61/63°
16
54/65°
5
Wind:<1515-2425-3940-5455+mph
Time periods: AM 5a–12p · PM 12p–8p · Night 8p–5a

4 more days of forecast — plan around the weather window, not just tomorrow.

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

Get condition updates for Mount Jefferson

Routes

Presi Traverse

Very Difficult
19.4 mi
8,301 ft
11-17 hours
Community

Trail Map

About Mount Jefferson

Third highest peak with dramatic Castellated Ridge and spectacular views. Often combined with Adams or Washington for a traverse.

Elevation

5,712 ft

Range

Presidential

Rank

#3 of 48

Difficulty

Very Difficult

Coordinates

44.3042, -71.3167

Nearby Peaks

Mount Adams

Very Difficult

5,774 ft · Presidential

1.7 mi away

Mount Washington

Difficult

6,288 ft · Presidential

2.4 mi away

Mount Madison

Very Difficult

5,367 ft · Presidential

2.6 mi away

Mount Monroe

Difficult

5,372 ft · Presidential

3.4 mi away

Mount Eisenhower

Difficult

4,780 ft · Presidential

4.7 mi away

Find your next peakTrack your NH 48 progressExplore all peaks

Trip Reports

Been to Mount Jefferson?

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Recorded incidents on this peak

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

  1. Aug 9, 2026·RescueFall· Link Trail

    Cynthia Krum, a 65-year-old from South Portland, Maine

    On August 9, 2026, Cynthia Krum, 65, slipped and fell from a rock while traversing the Link Trail on the north side of Mt. Jefferson, sustaining a leg injury that left her unable to walk. Her daughter called 911, and a rescue team of 3 Conservation Officers and 34 volunteers carried her out 1.6 miles to the Caps Ridge Trailhead. She was transported by ambulance to Littleton Regional Hospital.

    NH Fish and GameFull record
  2. Jul 24, 2024·RescueLost· Caps Ridge Trail

    60-year-old Alain Dion and 46-year-old Nadine Dion of Quebec, Canada

    Two Canadian hikers on the Caps Ridge Trail to Mt. Jefferson became lost, ran out of water, and grew tired on July 24, 2024. After an initial 911 call around 5:40 p.m., they attempted to self-rescue but called again at 8:58 p.m. when one became ill and they could not continue. Three Conservation Officers responded and assisted the hikers down to their vehicle, providing food, water, and headlamps.

    NH Fish and GameFull record
  3. Aug 29, 2014·FatalityMedical· Caps Ridge Trail

    63-year-old from Bridgton, ME

    Gregory Larson, 63, collapsed of cardiac arrest near the summit of Mount Jefferson on the Caps Ridge Trail on August 29, 2014 while hiking with the Denmark Mountain Hikers group. Companions — many trained in wilderness first aid — performed CPR for about two and a half hours. A National Guard helicopter hoisted him out, but he died during the rescue effort.

    New Hampshire Public RadioFull record
Show 4 older incidents
  1. Jan 15, 1994·FatalityHypothermia

    20-year-old UNH student from Saunderstown, RI

    Derek Tinkham, 20, attempted a winter northern Presidential traverse with Jeremy Haas on January 15, 1994 in a forecast extreme cold-and-wind event. Per the American Alpine Club, 'The temperature on the summit of Mount Washington the night Jeremy Haas arrived there was -42° F, and the winds were gusting up to 100 mph.' Underdressed and carrying sleeping bags rated only to -10°F, Tinkham succumbed near Jefferson's summit; Haas left him in a bivouac and crawled to the summit observatory, surviving with severe frostbite. The pair had passed trails to the heated Gray Knob cabin.

    New Hampshire MagazineFull record
  2. Mar 15, 1986·Fatality

Most-named locations: Caps Ridge Trail

All 7 by trail & year
Medical
· Castle Trail

56-year-old from Burlington, VT

Basil Goodridge, 56, died of a heart attack on the Castle Trail on Mount Jefferson in March 1986.

New Hampshire MagazineFull record
  • Oct 13, 1941·FatalityHypothermia· Caps Ridge Trail

    27-year-old from Roslindale, MA

    Louis Carl Haberland, 27, died of exposure on the Caps Ridge Trail on Mount Jefferson in October 1941.

    New Hampshire MagazineFull record
  • Jul 4, 1937·FatalityMedical· Caps Ridge Trail

    55-year-old from Salem, MA

    Harry A. Wheeler, 55, died of a heart attack on the Caps Ridge Trail on Mount Jefferson in July 1937.

    New Hampshire MagazineFull record