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  1. Peaks
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  3. Mount Jefferson

Mount Jefferson

#3 of 48Very Difficult

5,712 ft | Presidential | 1 route

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48°F / Feels 40°F
12 mph SW
ConditionsDangerous

Today's Conditions

Updated Apr 15, 5:33 PM

Current Weather

48°F

Feels like 40°F

Overcast
12 mph SW · Gusts 19 mph
59% humidity

Recent Precipitation

Rain: 0.15" (24h) · 0.39" (48h)

Elevation Forecast

Today
Summit 5,712'
44°/53°F39mphWC 33°☀️
5,000'
46°/53°F31mphWC 36°☀️
4,100'
47°/52°F24mphWC 39°☀️
3,300'
48°/54°F18mphWC 41°☀️
2,500'
49°/57°F12mphWC 44°☀️
Trailhead
50°/59°F10mphWC 46°☀️

~1.8°F drop per 1,000ft

AI Trail Conditions

Dangerous

Mount Jefferson is showing DANGEROUS conditions

See exactly why with full AI conditions — hazard alerts, gear recommendations, and the best hiking window.

See Full Conditions

Best Hiking Window

No recommended window in the next 48 hours. Wednesday deteriorates rapidly with rain, fog, and dangerous winds building through the afternoon and evening. Thursday brings a second, stronger system with heavier rain and elevated thunderstorm risk. Conditions do not improve meaningfully through Friday. Postpone this hike until a stable high-pressure system clears the region.

10 hazards identified
9 gear recommendations
Unlock Full Conditions

Recent Trail Reports

10
View all on NETC
Sunday, Apr. 12by IanB
SnowshoesLight TractionTraction

Trail: Cog Rail Trail, Gulfside, Jefferson Loop Trail, Clay Loop

Conditions: Ice - Black, Snow - Packed Powder/Loose Granular, Snow/Ice - Small Patches

“Up and down the cog to Jefferson. On the way back, I went over Clay (bypassed it on the way to Jefferson). Spikes from the trailhead to about 4,000, where I put on crampons. The section up through Jacob’s Ladder was, like last weekend, icy enough that I definitely wanted crampons. Once I got to the top of the steeper portion, spikes went on and stayed on the rest of the day, including the descent down the cog. Above tree line is a mix of rocks and frozen granular. In general there’s more rock than not, but I definitely wanted spikes. There are a couple of quite impressive snow fields on the east side of Clay. They’re supportive for now but will likely soften up. No more need for snowshoes if you’re going above tree line and taking the cog both ways [wrong. There is significant snowpack in the woods, so in the event of emergency, it may be deemed reckless if not having flotation when ascending above treeline without the ability to get back to safety via an alternate route]. Spikes and crampons only. IMHO an ice axe is overkill but I did see some people carrying them past Jacob’s Ladder.”

Mar. 21, 2026by Chief
SnowshoesLight TractionTraction

Trail: Jewell Trail, Gulfside, Jefferson Loop

Conditions: Ice - Blue, Ice - Breakable Crust, Snow/Ice - Frozen Granular, Snow - Drifts, Snow/Ice - Monorail (Stable), Snow/Ice - Monorail (Unstable)

“Jewell from the Cog Cutoff was a seasonal mixed bag. We encountered lots of hard ice interspersed with hard packed snow. As elevation increased, there was less ice and more snow with developed narrow monorail. Above tree line we experienced ice, rocks, snow, monorail and drifts. the drifting was mostly on Gulfside mostly in the Sphinx Col. The two small snowfields north of Sphinx Col were hard and icy and hillsounds worked but K-10s would have been better. I was in my “rock spikes” but newer ones would have been a help.”

Mar. 19, 2026by Uki
SnowshoesLight TractionTraction

Trail: Jewell Trail, Gulfside, Jefferson Loop

Conditions: Ice - Black, Ice - Blue, Snow - Packed Powder/Loose Granular, Ice - Breakable Crust, Snow/Ice - Frozen Granular

“This was a tale of all the seasons. We started in rock spikes since the trail had stretches of ice and packed powder. Things were very solid given the cold temps. Up higher there were many stretches where postholes and water had caused the packed trail to deteriorate leaving a 3 inch wide stretch to walk on with a 2 to 2 1/2 foot drop on either side. Above treeline had plenty of ice but also plenty of bare rock. The ice was bullet proof so we opted to further trash our rock spikes by walking on exposed rocks. We all had brought real traction but stuck to our rock spikes given all the exposed rocks. This required careful foot placement both ascending and descending. Snowshoes may be needed if things warm up again or we get more snow but today we managed in light traction. Conditions are tedious so bring your best hiking pals and a good sense of humor. Our crew had a great time out there!”

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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

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