Summit forecast for 4,358 ft · Kinsman · Updated 3x daily
As of August 16, 2026 at 8:20 PM ET
South Kinsman Mountain (4,358 ft) is currently 54°F (feels like 49°F) with overcast and SSE winds at 10 mph, gusting to 18 mph. Today's freezing level is 13,320–15,059 ft. Expect the summit to run about 9°F colder than the trailhead. Trail conditions are rated Difficult.
Valley forecasts don't apply up high — temperatures drop about 3.2°F per 1,000 ft on South Kinsman Mountain.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 4,358 ft | 49° – 57°F | 27 mph | 41°F |
| Treeline 4,000 ft | 49° – 58°F | 27 mph | 41°F |
| Trailhead 2,000 ft | 51° – 66°F | 16 mph | 51°F |
Freezing level today: 13,320–15,059 ft
~3.2°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 | fog | drizzle | fog | rain | fog | drizzle | cloudy |
| Temp °F hi / lo | 52° 50° | 57° 52° | 57° 56° | 57° 57° | 62° 58° | 61° 57° | 57° 53° | 61° 54° | 60° 58° |
| Chill °F | 45° | — | — | — | — | — | — | — | — |
| Wind mph | 15 | 21 | 32 | 27 | 18 | 8 | 13 | 11 | 9 |
| Gust mph est. | 24 | 34 | 51 | 43 | 29 | 13 | 21 | 18 | — |
| Storm risk | — | — | — | — | — | mod | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | 0.1 | - | 0.1 | - | - | - |
| Freezing ft | 14,371 ft | 14,632 ft | 14,543 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 7% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Vis mi | 0.4 | 9 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | 9 | clear |
| UV | 5 | 7 | — | 0 | 3 | — | 2 | 7 | — |
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| Elevation | Sunday Aug 16 | Today Aug 17 | Tomorrow Aug 18 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 4,358 ft | 50/52° 15 | 57/57° 27 | 53/57° 13 |
| 4,100 ft | 50/52° 15 | 57/58° 27 | 54/57° 14 |
| 3,300 ft | 51/54° 13 | 59/60° 23 | 56/59° 15 |
| 2,500 ft | 51/57° 10 | 61/62° 17 | 59/61° 13 |
| Trailhead 2,000 ft | 51/59° 8 | 63/64° 14 | 61/63° 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 August 16, 2026 at 8:20 PM ET: South Kinsman Mountain (4,358 ft) is currently 54°F (feels like 49°F) with overcast and SSE winds at 10 mph, gusting to 18 mph. Today's freezing level is 13,320–15,059 ft. Expect the summit to run about 9°F colder than the trailhead. Trail conditions are rated Difficult.
Temperatures drop roughly 3.2°F per 1,000 ft of elevation on South Kinsman Mountain. Today the trailhead (2,000 ft) tops out around 66°F while the summit (4,358 ft) reaches about 57°F, with a wind chill as low as 41°F.
Winds at the summit of South Kinsman Mountain are forecast to reach 27 mph today, with 27 mph at treeline. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (13,320–15,059 ft) is above the 4,358 ft summit of South Kinsman Mountain, so the full route should stay above freezing.