Summit forecast for 3,905 ft · Kilkenny · Updated 3x daily
As of July 21, 2026
The Horn (3,905 ft) is currently 55°F (feels like 48°F) with overcast and S winds at 11 mph, gusting to 24 mph. Today's freezing level is 12,369–14,108 ft. Expect the summit to run about 8°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 The Horn.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 3,905 ft | 58° – 62°F | 40 mph | 58°F |
| Trailhead 2,000 ft | 63° – 70°F | 23 mph | 63°F |
Freezing level today: 12,369–14,108 ft
~3.4°F drop per 1,000ft
Tap a day header to expand to 3hr or hourly detail
Today Jul 21 | Tomorrow Jul 22 | Thursday Jul 23 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | cloudy | drizzle | drizzle | drizzle | cloudy | ptly cloudy | cloudy | cloudy | sunny |
| Temp °F hi / lo | 60° 58° | 61° 60° | 62° 58° | 59° 57° | 62° 57° | 55° 41° | 47° 40° | 58° 49° | 56° 55° |
| Chill °F | — | — | — | — | — | 30° | 29° | 42° | — |
| Wind mph | 28 | 40 | 39 | 33 | 32 | 28 | 27 | 23 | 23 |
| Gust mph est. | 45 | 56 | 62 | 53 | 51 | 45 | 36 | — | — |
| Storm risk | — | — | — | mod | mod | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | 0.1 | - | - | - | - | - | - |
| Freezing ft | 13,540 ft | 13,415 ft | 8,796 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 68% | 100% | 100% | - |
| Vis mi | clear | 8 | <0.1 | <0.1 | 9 | 9 | clear | clear | clear |
| UV | 5 | 7 | — | 2 | 7 | — | 3 | 7 | — |
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| Elevation | Today Jul 21 | Tomorrow Jul 22 | Thursday Jul 23 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 3,905 ft | 58/60° 28 | 57/59° 33 | 40/47° 27 |
| 3,300 ft | 60/62° 26 | 59/61° 31 | 43/49° 25 |
| 2,500 ft | 62/66° 19 | 62/64° 23 | 46/53° 23 |
| Trailhead 2,000 ft | 63/68° 16 | 63/66° 17 | 48/56° 21 |
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 July 21, 2026: The Horn (3,905 ft) is currently 55°F (feels like 48°F) with overcast and S winds at 11 mph, gusting to 24 mph. Today's freezing level is 12,369–14,108 ft. Expect the summit to run about 8°F colder than the trailhead. Trail conditions are rated Moderate.
Temperatures drop roughly 3.4°F per 1,000 ft of elevation on The Horn. Today the trailhead (2,000 ft) tops out around 70°F while the summit (3,905 ft) reaches about 62°F, with a wind chill as low as 58°F.
Winds at the summit of The Horn are forecast to reach 40 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (12,369–14,108 ft) is above the 3,905 ft summit of The Horn, so the full route should stay above freezing.