Summit forecast for 4,358 ft · Kinsman · Updated 3x daily
As of September 4, 2026 at 1:20 PM ET
South Kinsman Mountain (4,358 ft) is currently 58°F (feels like 53°F) with partly cloudy and NW winds at 11 mph, gusting to 17 mph. Today's freezing level is 10,302–13,976 ft. Expect the summit to run about 11°F colder than the trailhead. Trail conditions are rated Moderate.
Valley forecasts don't apply up high — temperatures drop about 4.4°F per 1,000 ft on South Kinsman Mountain.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 4,358 ft | 52° – 57°F | 22 mph | 52°F |
| Treeline 4,000 ft | 53° – 59°F | 22 mph | 53°F |
| Trailhead 2,000 ft | 60° – 68°F | 14 mph | 60°F |
Freezing level today: 10,302–13,976 ft
~4.4°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 | fog | ptly cloudy | fog | fog | drizzle | cloudy | cloudy | drizzle | cloudy |
| Temp °F hi / lo | 55° 53° | 57° 55° | 54° 50° | 50° 50° | 51° 48° | 48° 45° | 46° 44° | 50° 47° | 47° 46° |
| Chill °F | — | — | 43° | 44° | 41° | 36° | 36° | 39° | 38° |
| Wind mph | 17 | 20 | 22 | 17 | 19 | 24 | 21 | 25 | 21 |
| Gust mph est. | 27 | 29 | 35 | 27 | 30 | 38 | 34 | 40 | — |
| Storm risk | mod | — | — | — | — | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | - | - | - | - | - |
| Freezing ft | 12,068 ft | 9,617 ft | 8,437 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 79% | 100% | 100% | 100% | 100% | 81% | 100% | 100% |
| Vis mi | 0.2 | clear | <0.1 | <0.1 | 0.3 | 9 | 6 | clear | clear |
| UV | 5 | 6 | — | 1 | 6 | — | 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 4,358 ft | 53/55° 17 | 50/50° 17 | 44/46° 21 |
| 4,100 ft | 54/56° 16 | 51/51° 17 | 45/47° 20 |
| 3,300 ft | 56/59° 13 | 53/55° 15 | 47/51° 18 |
| 2,500 ft | 58/61° 9 | 56/58° 13 | 49/55° 16 |
| Trailhead 2,000 ft | 60/63° 8 | 57/60° 11 | 51/58° 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 1:20 PM ET: South Kinsman Mountain (4,358 ft) is currently 58°F (feels like 53°F) with partly cloudy and NW winds at 11 mph, gusting to 17 mph. Today's freezing level is 10,302–13,976 ft. Expect the summit to run about 11°F colder than the trailhead. Trail conditions are rated Moderate.
Temperatures drop roughly 4.4°F per 1,000 ft of elevation on South Kinsman Mountain. Today the trailhead (2,000 ft) tops out around 68°F while the summit (4,358 ft) reaches about 57°F, with a wind chill as low as 52°F.
Winds at the summit of South Kinsman Mountain are forecast to reach 22 mph today, with 22 mph at treeline. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (10,302–13,976 ft) is above the 4,358 ft summit of South Kinsman Mountain, so the full route should stay above freezing.