5,712 ft | Presidential | 1 route
Feels like 58°F
Recent Precipitation
Rain: 1.09" (24h) · 1.45" (48h)
~2.4°F drop per 1,000ft
Mount Jefferson is showing DANGEROUS conditions
See exactly why with full AI conditions — hazard alerts, gear recommendations, and the best hiking window.
See Full ConditionsBest Hiking Window
No safe window exists Tuesday night or Wednesday. Conditions may improve slightly by early Thursday morning behind the front, but a second cold front with winds ramping back to near-hurricane force and afternoon thunderstorms is forecast to arrive Thursday. If hiking is planned, reassess Thursday morning conditions carefully before departing — an early start would be essential to be off exposed terrain before afternoon storms develop.
Trail: Caps Ridge Trail
Conditions: Dry Trail, Wet Trail, Mud - Minor/Avoidable
“Beautiful day for this. I only made it as far as the area where the boulders start getting challenging for short people. Texted Prema, who was a little ahead that I was waiting, and gave her a turnaround time for the summit. I enjoyed my seat and my view, contemplated on what a difference nearly 25 years had made, because that's the last time we did this trail. I'm 2 inches shorter then when I did this last. She summitted a couple minutes after the turnaround time, I told her to enjoy it and keep in touch. And hikers coming down filled me in as well. Thanks to the father/son hikers for taking her pictures. Caps Ridge is a great trail. If scrambling slows you down, start early. Even if you only make it partway, it's worth it. Here's the rest of the story from Prema. As the caps are above treeline, there are wonderful views the whole way up to the summit. Summit was nice, a good,clear day did not go to waste. Summit was nothing but rocks. You can hear the auto road traffic. A note about blazing, there are a few very faded blazes above treeline.”
Trail: Caps Ridge Trail, Cornice, Gulfside trail, Jefferson Loop Trail, Gulfside trail, auto road, crawford path, monroe loop trail, crawford path, Eisenhower loop trail, crawford path, webster jackson trail, crawford path
Conditions: Dry Trail
“Well we wanted to get sunrise but also get back to where we left off the day before. So back up caps and the cornice where colors started around 4:15 am. Up to Jefferson we got to see sunrise around mt Adams. Thankful for the no breeze and comfortable temps. Over to washington and on the summit, barely any people as it was before the cog and the road opened. After we left… the flood of people from the huts were let out. We left our packs at the junction and went up and down Monroe quick. We hit Franklin on the way and continued to Ike and Pierce where all the people were again. Made it down and the car read 79! Lovely time!”
Trail: Cog Rail Trail, Gulfside, Jefferson Loop
Conditions: Dry Trail
“Slept poorly and woke up early enough to leave southern NH around 3am. Arrived and was moving by 0500 at cog hiker parking area. Got up to Jefferson over clay in short order though my calves and achilles began to get pretty tight. Hit some vitamin I & slowed my pace a bit. After tagging Jefferson came back over Clay & started up the cog. Ended up taking gulfside up when the train came up next to me and emitted a huge nasty black cloud which, not only do i not want to breath in, but made it more challenging to move up along the tracks. I think they should retire that method of fueling the train.... but anyway hit the summit & ate my lunch as at that point I was feeling not so much up to the task of going down to Lakes and then coming back up to get the 7K vertical gain i was seeking. Headed down to the hut and stopped just before the hut at lake of the clouds. A SAR team was passing by (without someone) and it appeared they were gathering around the hut. I wanted to keep to myself so i turned before getting to the hut & it had been a long day. When i got back to the top of washington, i decided to buy a one way cog ticket down to save my knees from the descent that is never great. All in all a great summer day.”
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.
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
Been to Mount Jefferson?
Be the first to share your experience!
6 incidents on file · 5 fatal · drawn from NH Fish and Game releases and regional reporting
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.
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.
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.
56-year-old from Burlington, VT
Basil Goodridge, 56, died of a heart attack on the Castle Trail on Mount Jefferson in March 1986.
27-year-old from Roslindale, MA
Louis Carl Haberland, 27, died of exposure on the Caps Ridge Trail on Mount Jefferson in October 1941.
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.