The Klem and Mack Loop from Woods Road is a 6.6-mile loop with 1,336 ft of elevation gain.
Submitted by Aaron B.
6.6 mi • 1,336 ft gain • 3-5 hours • Woods road
Feels like 69°F
Recent Precipitation
Rain: 0.12" (24h) · 0.36" (48h)
Best Hiking Window
Early morning Tuesday, August 25, shortly after sunrise for cool temperatures and drier trail conditions following overnight clearing
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.
Summit-level conditions by time of day at 2,001' elevation
Tap a day header to expand to 3hr or hourly detail
Today Aug 24 | Tomorrow Aug 25 | Wednesday Aug 26 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | fog | sunny | sunny | sunny | cloudy | sunny | sunny | cloudy | cloudy |
| Temp °F hi / lo | 62° 58° | 67° 62° | 66° 61° | 62° 59° | 66° 62° | 63° 59° | 62° 58° | 70° 64° | 69° 66° |
| Chill °F | — | — | — | — | — | — | — | — | — |
| Wind mph | 13 | 22 | 22 | 13 | 19 | 21 | 16 | 11 | 11 |
| Gust mph est. | — | — | — | — | — | — | — | — | — |
| Storm risk | mod | mod | — | — | mod | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | - | - | - | - | - |
| Freezing ft | 10,443 ft | 10,401 ft | 13,208 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 33% | 4% | 20% | 100% | 3% | - | 100% | 100% |
| Vis mi | <0.1 | clear | clear | clear | clear | clear | clear | clear | clear |
| UV | 5 | 7 | — | 5 | 6 | — | 5 | 6 | — |
Tap a day header to expand AM/PM/Night detail
| Elevation | Today Aug 24 | Tomorrow Aug 25 | Wednesday Aug 26 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 2,001 ft | 58/62° 13 | 59/62° 13 | 58/62° 16 |
| Trailhead 2,000 ft | 58/62° 13 | 59/62° 13 | 58/62° 16 |
4 more days of forecast — plan around the weather window, not just tomorrow.
Full hourly summit forecasts: Mount Klem weather · Mount Mack weather
The Klem and Mack Loop from Woods Road is a 6.6-mile loop in New Hampshire's White Mountains, starting at Woods road. It climbs about 1,336 ft — an average of 201 ft per mile — which works out to roughly 3-5 hours at AMC book time. It summits 2 named peaks, topping out on Mount Klem at 2,001 ft: Mount Klem (2,001 ft), Mount Mack (1,945 ft). HikerNerd rates it Moderate on effort alone — check the current conditions above before committing, since weather above treeline changes the day far more than the numbers do.
Distance
6.6 mi
Elevation Gain
1,336 ft
Duration
3-5 hours
Trailhead
Woods road
The Klem and Mack Loop from Woods Road is 6.6 miles around the loop, starting at Woods road. At AMC book time — half the distance in hours plus 30 minutes per 1,000 ft of climbing — that works out to roughly 3-5 hours. Most parties take longer than book time on rough or above-treeline terrain, in winter, or with a heavy pack.
The Klem and Mack Loop from Woods Road climbs about 1,336 ft over 6.6 miles — an average of roughly 201 ft of gain per mile. That figure is cumulative ascent across the whole loop, not the difference between the trailhead and the high point.
HikerNerd rates the Klem and Mack Loop from Woods Road Moderate, scored with the Shenandoah difficulty formula — √(elevation gain × 2 × distance) — applied to its 6.6 miles and 1,336 ft of gain. The score measures physical effort only. Above-treeline exposure, water crossings, and winter conditions can make a moderate-rated route the hardest day of your year, so check current conditions before committing.
The Klem and Mack Loop from Woods Road summits 2 named peaks: Mount Klem, Mount Mack.
The Klem and Mack Loop from Woods Road starts at Woods road. Check the trail alerts on this page before you drive — trailhead access and parking in the White Mountains change with closures and construction.
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