Summit forecast for 3,165 ft · Monadnock · Updated 3x daily
As of September 4, 2026 at 1:20 PM ET
Mount Monadnock (3,165 ft) is currently 65°F (feels like 65°F) with clear sky and NW winds at 10 mph, gusting to 15 mph. Today's freezing level is 12,631–14,600 ft. Expect the summit to run about 6°F colder than the trailhead. Trail conditions are rated Good.
Valley forecasts don't apply up high — temperatures drop about 4.0°F per 1,000 ft on Mount Monadnock.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 3,165 ft | 60° – 65°F | 22 mph | 60°F |
| Trailhead 2,000 ft | 63° – 71°F | 21 mph | 63°F |
Freezing level today: 12,631–14,600 ft
~4°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 | sunny | sunny | cloudy | cloudy | cloudy | cloudy | drizzle | cloudy | sunny |
| Temp °F hi / lo | 63° 60° | 65° 61° | 65° 57° | 56° 55° | 58° 54° | 54° 48° | 51° 49° | 56° 53° | 55° 53° |
| Chill °F | — | — | — | — | — | 40° | 43° | — | — |
| Wind mph | 18 | 17 | 24 | 24 | 23 | 26 | 17 | 30 | 31 |
| Gust mph est. | — | — | — | — | 29 | 34 | — | — | — |
| Storm risk | — | — | — | — | — | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | - | - | - | - | - |
| Freezing ft | 13,567 ft | 10,485 ft | 8,594 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 16% | 18% | 100% | 100% | 100% | 98% | 100% | 100% | 29% |
| Vis mi | 9 | clear | 8 | 8 | 8 | 8 | 9 | clear | clear |
| UV | 5 | 7 | — | 3 | 4 | — | 5 | 6 | — |
Tap a day header to expand AM/PM/Night detail
| Elevation | Today Sep 4 | Tomorrow Sep 5 | Sunday Sep 6 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 3,165 ft | 60/63° 18 | 55/56° 24 | 49/51° 17 |
| 2,500 ft | 62/65° 17 | 57/58° 26 | 51/53° 17 |
| Trailhead 2,000 ft | 63/66° 15 | 58/60° 23 | 52/55° 16 |
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: Mount Monadnock (3,165 ft) is currently 65°F (feels like 65°F) with clear sky and NW winds at 10 mph, gusting to 15 mph. Today's freezing level is 12,631–14,600 ft. Expect the summit to run about 6°F colder than the trailhead. Trail conditions are rated Good.
Temperatures drop roughly 4.0°F per 1,000 ft of elevation on Mount Monadnock. Today the trailhead (2,000 ft) tops out around 71°F while the summit (3,165 ft) reaches about 65°F, with a wind chill as low as 60°F.
Winds at the summit of Mount Monadnock are forecast to reach 22 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (12,631–14,600 ft) is above the 3,165 ft summit of Mount Monadnock, so the full route should stay above freezing.