5,712 ft | Presidential | 1 route
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
Feels like 29°F
~3.4°F drop per 1,000ft
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
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.
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.”
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.”
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.”
Tap a day header to expand to 3hr or hourly detail
Today Aug 29 | Tomorrow Aug 30 | Monday Aug 31 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| 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 °F | 39° | 37° | 38° | 36° | 39° | 37° | 39° | 44° | 45° |
| Wind mph | 13 | 20 | 39 | 43 | 36 | 35 | 17 | 8 | 10 |
| Gust mph est. | 21 | 32 | 62 | 60 | 58 | 56 | 26 | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | 0.4 | 0.1 | - | - | - |
| Freezing ft | 12,256 ft | 11,685 ft | 13,201 ft | ||||||
| Conditions | |||||||||
| Cloud cover | - | - | 100% | 100% | 100% | 100% | - | - | 100% |
| Vis mi | 10 | clear | clear | 9 | <0.1 | clear | clear | clear | clear |
| UV | 5 | 7 | — | 4 | 6 | — | 5 | 7 | — |
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 | 47/48° 43 | 46/46° 17 |
| 5,000 ft | 46/47° 14 | 50/52° 42 | 49/50° 12 |
| 4,100 ft | 47/48° 13 | 53/55° 38 | 53/54° 9 |
| 3,300 ft | 48/51° 13 | 56/58° 31 | 55/59° 7 |
| 2,500 ft | 50/55° 9 | 59/61° 19 | 53/63° 6 |
| Trailhead 2,000 ft | 51/57° 8 | 61/63° 16 | 54/65° 5 |
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.
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
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7 incidents on file · 5 fatal · drawn from NH Fish and Game releases and regional reporting
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.
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.