Summit forecast for 3,905 ft · Kilkenny · Updated 3x daily
As of September 4, 2026 at 1:20 PM ET
The Horn (3,905 ft) is currently 59°F (feels like 57°F) with mainly clear and WNW winds at 12 mph, gusting to 19 mph. Today's freezing level is 10,007–13,550 ft. Expect the summit to run about 9°F colder than the trailhead. Trail conditions are rated Good.
Valley forecasts don't apply up high — temperatures drop about 4.2°F per 1,000 ft on The Horn.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 3,905 ft | 54° – 58°F | 21 mph | 54°F |
| Trailhead 2,000 ft | 59° – 67°F | 16 mph | 59°F |
Freezing level today: 10,007–13,550 ft
~4.2°F drop per 1,000ft
Tap a day header to expand to 3hr or hourly detail
Today Sep 4 | Tomorrow Sep 5 | Sunday Sep 6 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | fog | cloudy | fog | fog | rain | cloudy | cloudy | drizzle | sunny |
| Temp °F hi / lo | 57° 55° | 58° 56° | 56° 52° | 51° 51° | 51° 49° | 49° 45° | 47° 45° | 50° 48° | 50° 48° |
| Chill °F | — | — | — | — | 42° | 36° | 37° | 41° | 41° |
| Wind mph | 15 | 21 | 21 | 14 | 21 | 25 | 20 | 22 | 21 |
| Gust mph est. | 24 | 34 | 34 | 22 | 33 | 40 | 29 | — | — |
| Storm risk | mod | — | — | — | — | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | 0.1 | - | - | - | - |
| Freezing ft | 10,997 ft | 9,506 ft | 8,157 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 11% |
| Vis mi | 0.2 | 10 | <0.1 | <0.1 | <0.1 | 8 | 10 | clear | clear |
| UV | 5 | 6 | — | 2 | 3 | — | 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 3,905 ft | 55/57° 15 | 51/51° 14 | 45/47° 20 |
| 3,300 ft | 56/59° 13 | 53/53° 13 | 47/50° 18 |
| 2,500 ft | 58/61° 10 | 56/57° 10 | 49/54° 16 |
| Trailhead 2,000 ft | 59/63° 9 | 57/59° 9 | 50/56° 14 |
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: The Horn (3,905 ft) is currently 59°F (feels like 57°F) with mainly clear and WNW winds at 12 mph, gusting to 19 mph. Today's freezing level is 10,007–13,550 ft. Expect the summit to run about 9°F colder than the trailhead. Trail conditions are rated Good.
Temperatures drop roughly 4.2°F per 1,000 ft of elevation on The Horn. Today the trailhead (2,000 ft) tops out around 67°F while the summit (3,905 ft) reaches about 58°F, with a wind chill as low as 54°F.
Winds at the summit of The Horn are forecast to reach 21 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (10,007–13,550 ft) is above the 3,905 ft summit of The Horn, so the full route should stay above freezing.