Summit forecast for 2,539 ft · Twin Range · Updated 3x daily
As of September 4, 2026 at 8:20 PM ET
Middle Sugarloaf (2,539 ft) is currently 58°F (feels like 55°F) with mainly clear and WNW winds at 9 mph, gusting to 19 mph. Today's freezing level is 11,483–13,714 ft. Expect the summit to run about 2°F colder than the trailhead. Trail conditions are rated Good.
Valley forecasts don't apply up high — temperatures drop about 3.6°F per 1,000 ft on Middle Sugarloaf.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 2,539 ft | 58° – 64°F | 14 mph | 58°F |
| Trailhead 2,000 ft | 59° – 66°F | 12 mph | 59°F |
Freezing level today: 11,483–13,714 ft
~3.6°F drop per 1,000ft
Tap a day header to expand to 3hr or hourly detail
Friday Sep 4 | Today Sep 5 | Tomorrow Sep 6 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | fog | cloudy | cloudy | fog | cloudy | cloudy | ptly cloudy | drizzle | cloudy |
| Temp °F hi / lo | 61° 58° | 64° 62° | 60° 57° | 59° 56° | 60° 56° | 55° 50° | 53° 49° | 58° 52° | 51° 48° |
| Chill °F | — | — | — | — | — | 45° | 44° | — | 46° |
| Wind mph | 8 | 12 | 14 | 7 | 13 | 13 | 12 | 15 | 5 |
| Gust mph est. | 13 | 19 | 22 | 11 | 21 | 21 | 19 | 23 | — |
| Storm risk | mod | mod | — | — | — | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | - | - | - | - | - |
| Freezing ft | 12,332 ft | 9,455 ft | 7,991 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 99% | 100% | 100% | 100% | 100% | 61% | 100% | 100% |
| Vis mi | 0.2 | 9 | 8 | 0.1 | clear | 9 | 9 | clear | clear |
| UV | 5 | 6 | — | 4 | 5 | — | 5 | 6 | — |
Tap a day header to expand AM/PM/Night detail
| Elevation | Friday Sep 4 | Today Sep 5 | Tomorrow Sep 6 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 2,539 ft | 58/61° 8 | 56/59° 7 | 49/53° 12 |
| 2,500 ft | 58/61° 8 | 56/59° 7 | 49/53° 12 |
| Trailhead 2,000 ft | 59/63° 7 | 57/61° 6 | 51/55° 11 |
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 8:20 PM ET: Middle Sugarloaf (2,539 ft) is currently 58°F (feels like 55°F) with mainly clear and WNW winds at 9 mph, gusting to 19 mph. Today's freezing level is 11,483–13,714 ft. Expect the summit to run about 2°F colder than the trailhead. Trail conditions are rated Good.
Temperatures drop roughly 3.6°F per 1,000 ft of elevation on Middle Sugarloaf. Today the trailhead (2,000 ft) tops out around 66°F while the summit (2,539 ft) reaches about 64°F, with a wind chill as low as 58°F.
Winds at the summit of Middle Sugarloaf are forecast to reach 14 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (11,483–13,714 ft) is above the 2,539 ft summit of Middle Sugarloaf, so the full route should stay above freezing.