Summit forecast for 2,539 ft · Twin · Updated 3x daily
2,539 ft | Twin | 0 routes
As of October 22, 2026 at 1:20 PM ET
Middle Sugarloaf (2,539 ft) is currently 47°F (feels like 39°F) with clear sky and NW winds at 12 mph, gusting to 24 mph. Today's freezing level is 3,871–11,417 ft. Expect the summit to run about 2°F colder than the trailhead. Trail conditions are rated Moderate.
Bring microspikes (29°F summit low) and a headlamp (only 10h 37m of daylight). Why these · Paid links, Backcountry.com pays me if you buy.
One email when the first widespread ice reports come in from the Whites, with what to bring. Then the Thursday conditions outlook each week.
Valley forecasts don't apply up high — temperatures drop about 1.4°F per 1,000 ft on Middle Sugarloaf.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 2,539 ft | 37° – 48°F | 22 mph | 26°F |
| Trailhead 2,000 ft | 39° – 50°F | 18 mph | 30°F |
Freezing level today: 3,871–11,417 ft
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| Elevation | Today Oct 22 | Tomorrow Oct 23 | Saturday Oct 24 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 2,539 ft | 42/43° 13 | 29/31° 14 | 36/40° 7 |
| 2,500 ft | 42/43° 12 | 29/31° 14 | 36/40° 7 |
| Trailhead 2,000 ft | 42/44° 9 | 30/33° 11 | 36/42° 5 |
4 more days of forecast: plan around the weather window, not just tomorrow.
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Conditions synthesized from: NWS Higher Summits Forecast, NOAA Open-Meteo, Mount Washington Observatory, NETC Trip Reports, NOHRSC Snow Depth.
As of October 22, 2026 at 1:20 PM ET: Middle Sugarloaf (2,539 ft) is currently 47°F (feels like 39°F) with clear sky and NW winds at 12 mph, gusting to 24 mph. Today's freezing level is 3,871–11,417 ft. Expect the summit to run about 2°F colder than the trailhead. Trail conditions are rated Moderate.
Temperatures drop roughly 1.4°F per 1,000 ft of elevation on Middle Sugarloaf. Today the trailhead (2,000 ft) tops out around 50°F while the summit (2,539 ft) reaches about 48°F, with a wind chill as low as 26°F.
Winds at the summit of Middle Sugarloaf are forecast to reach 22 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (3,871–11,417 ft) is above the 2,539 ft summit of Middle Sugarloaf, so the full route should stay above freezing.
Middle Sugarloaf Trail Conditions
AI conditions, hazards, gear & trail reports
Routes up Middle Sugarloaf
Distance, elevation gain & book time
White Mountains trail reports
Ice, mud and the traction hikers carried this week
Trailhead parking
When the lots fill, from hikers' reports
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29°F
Summit low
Microspikes
Summit lows near 29°F, so expect ice on rock and the upper trail.
10h 37m
Daylight
Headlamp
Sunset around 5:48 PM, so a late start or a slow descent ends in the dark.
The rest of the list: Winter gear guide · How I pick gear
AI-generated from public data. Always verify conditions before heading out — backcountry weather can change quickly.