Summit forecast for 4,180 ft · Sandwich · Updated 3x daily
As of July 21, 2026
Mount Tripyramid (North Peak) (4,180 ft) is currently 54°F (feels like 48°F) with overcast and SSW winds at 11 mph, gusting to 25 mph. Today's freezing level is 12,894–14,239 ft. Expect the summit to run about 8°F colder than the trailhead. Trail conditions are rated Difficult.
Valley forecasts don't apply up high — temperatures drop about 3.0°F per 1,000 ft on Mount Tripyramid (North Peak).
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 4,180 ft | 56° – 60°F | 34 mph | 56°F |
| Treeline 4,000 ft | 56° – 60°F | 33 mph | 56°F |
| Trailhead 2,000 ft | 61° – 68°F | 17 mph | 61°F |
Freezing level today: 12,894–14,239 ft
~3°F drop per 1,000ft
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Today Jul 21 | Tomorrow Jul 22 | Thursday Jul 23 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | cloudy | rain | rain | fog | cloudy | cloudy | sunny | sunny | sunny |
| Temp °F hi / lo | 57° 56° | 60° 56° | 60° 58° | 58° 57° | 61° 58° | 57° 42° | 46° 42° | 58° 49° | 55° 54° |
| Chill °F | — | — | — | — | — | 32° | 32° | 42° | — |
| Wind mph | 27 | 34 | 34 | 33 | 29 | 26 | 27 | 23 | 19 |
| Gust mph est. | 43 | 54 | 54 | 53 | 46 | 42 | 43 | 37 | — |
| Storm risk | — | — | — | mod | mod | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | 0.4 | 0.1 | - | - | - | - | - | - |
| Freezing ft | 13,717 ft | 13,287 ft | 9,588 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 9% | 6% | 5% |
| Vis mi | clear | 2 | <0.1 | <0.1 | 9 | clear | clear | clear | clear |
| UV | 6 | 7 | — | 2 | 6 | — | 6 | 8 | — |
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| Elevation | Today Jul 21 | Tomorrow Jul 22 | Thursday Jul 23 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 4,180 ft | 56/57° 27 | 57/58° 33 | 42/46° 27 |
| 4,100 ft | 56/57° 27 | 57/58° 33 | 42/46° 26 |
| 3,300 ft | 58/59° 25 | 59/62° 26 | 45/51° 20 |
| 2,500 ft | 60/62° 17 | 62/66° 17 | 47/55° 17 |
| Trailhead 2,000 ft | 61/64° 14 | 64/68° 14 | 46/58° 12 |
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 July 21, 2026: Mount Tripyramid (North Peak) (4,180 ft) is currently 54°F (feels like 48°F) with overcast and SSW winds at 11 mph, gusting to 25 mph. Today's freezing level is 12,894–14,239 ft. Expect the summit to run about 8°F colder than the trailhead. Trail conditions are rated Difficult.
Temperatures drop roughly 3.0°F per 1,000 ft of elevation on Mount Tripyramid (North Peak). Today the trailhead (2,000 ft) tops out around 68°F while the summit (4,180 ft) reaches about 60°F, with a wind chill as low as 56°F.
Winds at the summit of Mount Tripyramid (North Peak) are forecast to reach 34 mph today, with 33 mph at treeline. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (12,894–14,239 ft) is above the 4,180 ft summit of Mount Tripyramid (North Peak), so the full route should stay above freezing.