As of October 22, 2026 at 9:00 PM ET
Mount Mack (1,945 ft) is currently 47°F (feels like 38°F) with clear sky and N winds at 11 mph, gusting to 24 mph. Today's freezing level is 4,626–12,106 ft. Trail conditions are rated Good.
Bring a headlamp (only 10h 37m of daylight). Why these · Paid link, 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 2.4°F per 1,000 ft on Mount Mack.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 1,945 ft | 43° – 56°F | 34 mph | 32°F |
| Trailhead 2,000 ft | 43° – 55°F | 34 mph | 32°F |
Freezing level today: 4,626–12,106 ft
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| Elevation | Thursday Oct 22 | Today Oct 23 | Tomorrow Oct 24 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 1,945 ft | 45/47° 26 | 36/36° 27 | 37/40° 11 |
| Trailhead 2,000 ft | 45/47° 26 | 36/36° 28 | 37/40° 11 |
4 more days of forecast: plan around the weather window, not just tomorrow.
Winter hiker? The Winter Pass is $24 once for the whole week, every week, until April 30, 2027. Nothing renews.
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 9:00 PM ET: Mount Mack (1,945 ft) is currently 47°F (feels like 38°F) with clear sky and N winds at 11 mph, gusting to 24 mph. Today's freezing level is 4,626–12,106 ft. Trail conditions are rated Good.
Temperatures drop roughly 2.4°F per 1,000 ft of elevation on Mount Mack. Today the trailhead (2,000 ft) tops out around 55°F while the summit (1,945 ft) reaches about 56°F, with a wind chill as low as 32°F.
Winds at the summit of Mount Mack are forecast to reach 34 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (4,626–12,106 ft) is above the 1,945 ft summit of Mount Mack, so the full route should stay above freezing.
Mount Mack Trail Conditions
AI conditions, hazards, gear & trail reports
Routes up Mount Mack
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
Paid link. Backcountry.com pays me if you buy.
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: Fall gear guide · How I pick gear
AI-generated from public data. Always verify conditions before heading out — backcountry weather can change quickly.
Summit forecast for 1,945 ft · Belknap · Updated 3x daily
1,945 ft | Belknap | 2 routes