Summit forecast for 4,180 ft · Sandwich · Updated 3x daily
As of September 4, 2026 at 1:20 PM ET
Mount Tripyramid (North Peak) (4,180 ft) is currently 60°F (feels like 59°F) with mainly clear and NW winds at 10 mph, gusting to 16 mph. Today's freezing level is 10,367–13,780 ft. Expect the summit to run about 10°F colder than the trailhead. Trail conditions are rated Good.
Valley forecasts don't apply up high — temperatures drop about 3.8°F per 1,000 ft on Mount Tripyramid (North Peak).
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 4,180 ft | 55° – 59°F | 24 mph | 55°F |
| Treeline 4,000 ft | 55° – 60°F | 24 mph | 55°F |
| Trailhead 2,000 ft | 62° – 69°F | 16 mph | 62°F |
Freezing level today: 10,367–13,780 ft
~3.8°F drop per 1,000ft
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Today Sep 4 | Tomorrow Sep 5 | Sunday Sep 6 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | cloudy | sunny | ptly cloudy | fog | rain | ptly cloudy | ptly cloudy | cloudy | cloudy |
| Temp °F hi / lo | 58° 56° | 58° 57° | 56° 53° | 53° 51° | 51° 48° | 49° 46° | 47° 46° | 51° 48° | 49° 47° |
| Chill °F | — | — | — | — | 41° | 37° | 39° | 40° | 40° |
| Wind mph | 19 | 23 | 25 | 17 | 22 | 26 | 17 | 23 | 17 |
| Gust mph est. | 30 | 37 | 40 | 27 | 35 | 42 | 27 | 37 | 24 |
| Storm risk | mod | — | — | — | — | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | 0.2 | - | - | - | - |
| Freezing ft | 11,589 ft | 9,642 ft | 8,342 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 30% | 77% | 100% | 100% | 72% | 55% | 100% | 100% |
| Vis mi | 1 | clear | 8 | 0.4 | <0.1 | 8 | clear | clear | clear |
| UV | 5 | 6 | — | 2 | 4 | — | 5 | 6 | — |
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| Elevation | Today Sep 4 | Tomorrow Sep 5 | Sunday Sep 6 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 4,180 ft | 56/58° 19 | 51/53° 17 | 46/47° 17 |
| 4,100 ft | 56/58° 19 | 51/53° 17 | 46/47° 17 |
| 3,300 ft | 58/61° 17 | 54/55° 16 | 48/52° 15 |
| 2,500 ft | 61/64° 12 | 57/58° 11 | 50/56° 13 |
| Trailhead 2,000 ft | 63/66° 9 | 59/60° 9 | 51/58° 10 |
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.
As of September 4, 2026 at 1:20 PM ET: Mount Tripyramid (North Peak) (4,180 ft) is currently 60°F (feels like 59°F) with mainly clear and NW winds at 10 mph, gusting to 16 mph. Today's freezing level is 10,367–13,780 ft. Expect the summit to run about 10°F colder than the trailhead. Trail conditions are rated Good.
Temperatures drop roughly 3.8°F per 1,000 ft of elevation on Mount Tripyramid (North Peak). Today the trailhead (2,000 ft) tops out around 69°F while the summit (4,180 ft) reaches about 59°F, with a wind chill as low as 55°F.
Winds at the summit of Mount Tripyramid (North Peak) are forecast to reach 24 mph today, with 24 mph at treeline. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (10,367–13,780 ft) is above the 4,180 ft summit of Mount Tripyramid (North Peak), so the full route should stay above freezing.