Summit forecast for 3,165 ft · Monadnock · Updated 3x daily
As of July 21, 2026
Mount Monadnock (3,165 ft) is currently 56°F (feels like 51°F) with overcast and S winds at 13 mph, gusting to 27 mph. Today's freezing level is 13,353–14,829 ft. Expect the summit to run about 4°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 Mount Monadnock.
| Elevation | Temp Range | Max Wind | Wind Chill (Low) |
|---|---|---|---|
| Summit 3,165 ft | 59° – 67°F | 35 mph | 59°F |
| Trailhead 2,000 ft | 61° – 71°F | 30 mph | 61°F |
Freezing level today: 13,353–14,829 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 | rain | rain | cloudy | rain | cloudy | sunny | sunny | sunny |
| Temp °F hi / lo | 62° 60° | 66° 62° | 67° 62° | 63° 60° | 65° 63° | 62° 51° | 54° 51° | 62° 55° | 62° 60° |
| Chill °F | — | — | — | — | — | — | — | — | — |
| Wind mph | 29 | 34 | 38 | 33 | 19 | 28 | 25 | 15 | 15 |
| Gust mph est. | 37 | 39 | 53 | 50 | 25 | — | — | — | — |
| Storm risk | — | mod | mod | mod | mod | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | 0.5 | 0.3 | - | 0.4 | - | - | - | - |
| Freezing ft | 14,156 ft | 13,629 ft | 11,773 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 5% | - | - |
| Vis mi | clear | <0.1 | <0.1 | 8 | 1 | clear | clear | clear | clear |
| UV | 4 | 6 | — | 3 | 7 | — | 6 | 8 | — |
Tap a day header to expand AM/PM/Night detail
| Elevation | Today Jul 21 | Tomorrow Jul 22 | Thursday Jul 23 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 3,165 ft | 60/62° 29 | 60/63° 33 | 51/54° 25 |
| 2,500 ft | 61/64° 28 | 62/66° 30 | 53/57° 23 |
| Trailhead 2,000 ft | 61/66° 24 | 63/68° 23 | 54/59° 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: Mount Monadnock (3,165 ft) is currently 56°F (feels like 51°F) with overcast and S winds at 13 mph, gusting to 27 mph. Today's freezing level is 13,353–14,829 ft. Expect the summit to run about 4°F colder than the trailhead. Trail conditions are rated Moderate.
Temperatures drop roughly 3.4°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 67°F, with a wind chill as low as 59°F.
Winds at the summit of Mount Monadnock are forecast to reach 35 mph today. Above treeline there is no shelter from wind — plan layers around wind chill, not air temperature.
Today's freezing level (13,353–14,829 ft) is above the 3,165 ft summit of Mount Monadnock, so the full route should stay above freezing.