Summit forecast for 2,539 ft · Twin Range · Updated 3x daily
As of August 16, 2026 at 8:20 PM ET
Middle Sugarloaf (2,539 ft) is currently 60°F (feels like 56°F) with mainly clear and SSE winds at 12 mph, gusting to 20 mph. Today's freezing level is 13,156–14,993 ft. Expect the summit to run about 2°F colder than the trailhead. Trail conditions are rated Moderate.
Valley forecasts don't apply up high — temperatures drop about 3.4°F per 1,000 ft on Middle Sugarloaf.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 2,539 ft | 52° – 64°F | 17 mph | 52°F |
| Trailhead 2,000 ft | 52° – 66°F | 14 mph | 52°F |
Freezing level today: 13,156–14,993 ft
~3.4°F drop per 1,000ft
Tap a day header to expand to 3hr or hourly detail
Sunday Aug 16 | Today Aug 17 | Tomorrow Aug 18 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | fog | cloudy | cloudy | cloudy | cloudy | drizzle | rain | drizzle | cloudy |
| Temp °F hi / lo | 58° 52° | 64° 59° | 64° 62° | 63° 61° | 68° 64° | 66° 62° | 61° 58° | 70° 59° | 64° 59° |
| Chill °F | — | — | — | — | — | — | — | — | — |
| Wind mph | 7 | 13 | 17 | 14 | 11 | 6 | 10 | 8 | 2 |
| Gust mph est. | 11 | 21 | 27 | 22 | 15 | 10 | 14 | 13 | — |
| Storm risk | — | — | — | — | mod | mod | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | - | - | 0.2 | - | - |
| Freezing ft | 14,253 ft | 14,568 ft | 14,496 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Vis mi | 0.2 | clear | 8 | 8 | clear | <0.1 | <0.1 | 10 | clear |
| UV | 5 | 7 | — | 0 | 2 | — | 3 | 6 | — |
Tap a day header to expand AM/PM/Night detail
| Elevation | Sunday Aug 16 | Today Aug 17 | Tomorrow Aug 18 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 2,539 ft | 52/58° 7 | 61/63° 14 | 58/61° 10 |
| 2,500 ft | 52/58° 7 | 61/63° 14 | 58/61° 10 |
| Trailhead 2,000 ft | 52/60° 5 | 63/65° 12 | 60/63° 9 |
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 August 16, 2026 at 8:20 PM ET: Middle Sugarloaf (2,539 ft) is currently 60°F (feels like 56°F) with mainly clear and SSE winds at 12 mph, gusting to 20 mph. Today's freezing level is 13,156–14,993 ft. Expect the summit to run about 2°F colder than the trailhead. Trail conditions are rated Moderate.
Temperatures drop roughly 3.4°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 52°F.
Winds at the summit of Middle Sugarloaf are forecast to reach 17 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (13,156–14,993 ft) is above the 2,539 ft summit of Middle Sugarloaf, so the full route should stay above freezing.