4,051 ft | Willey | 1 route
As of September 2, 2026
Trail conditions on Mount Tom are currently rated Moderate. It's 52°F (feels like 47°F) with ESE winds at 8 mph. The listed route, Mount Tom, Field, Willey, and Avalon Loop, is a 9.4-mile loop with 3,325 ft of elevation gain, taking about 5-8 hours. Mount Tom (4,051 ft) is #40 of 48 on the NH 48 list. See the hour-by-hour Mount Tom weather forecast for summit temps, wind chill, and the best hiking window.
Mount Tom weather forecast
Hourly summit temps, wind chill & freezing level, trailhead to summit
Feels like 47°F
Recent Precipitation
Rain: 0.07" (24h) · 0.07" (48h)
~3.4°F drop per 1,000ft
Conditions summary as of September 2, 2026
Mount Tom is currently in decent shape with mild temperatures and light wind, but a shortwave and warm front will bring increasing rain and thunderstorm chances starting Wednesday and worsening into Thursday. Trails are already reported wet with mud and slippery rocks from recent rain, and conditions will deteriorate further as the week progresses, so an early hike is preferable before wetter weather arrives.
Expect temperatures to drop roughly 3-4°F per 1,000 feet gained, with winds picking up from about 9 mph at the trailhead to near 16 mph at treeline and the summit; pack a light insulating layer and windbreaker to add once you clear the trees, since this peak has no above-treeline exposure but summit breezes can still make it feel noticeably cooler than the trailhead.
Best Hiking Window
Early morning Tuesday (before remaining daylight) or early Wednesday morning before afternoon thunderstorm chances increase; avoid Wednesday afternoon through Thursday due to increasing rain and thunderstorm risk
Last synthesized Sep 2, 1:20 AM
Planning a hike here this week?
Trailblazer adds the full 7-day summit forecast, the best day to go for every peak, and conditions for each route up.
Trail: Avalon Trail, A-Z Trail, Mt. Tom Spur, Willey Range Trail
Conditions: Dry Trail, Wet Trail, Wet/Slippery Rock, Standing/Running Water on Trail, Mud - Minor/Avoidable
“It was a humid one to start and I wasn't sure if I was going to get rained on or just spend my day in a cloud. It turned out that neither happened. The trails were quite wet from last night's rain so all the rocks were wet and there was more mud than usual. Footing was still pretty good and the water crossings were easy. I cleared all the spider webs along the way and didn't see anyone until I was on my way back from Willey and headed back up Field. I was in a cloud for Tom and Field but lucked out and got some in and out views off the viewpoint down from Willey's summit. As I returned, the skies were clearing so all those coming after me should have had some really nice views today. The trail was beginning to dry out upon my return as well. The icing on the cake was finding trail magic left for me in my car today! I suspect I know who left it and it totally made my day! <3”
Trail: West Side Trail, Kedron Flume Trail, Ethan Pond Trail, Willey Range Trail, A-Z Trail, Mt. Tom Spur, Zealand Trail
Conditions: Dry Trail, Mud - Minor/Avoidable
“This was a great loop for being in secluded wilderness, and the Whitewall section of Ethan Pond trail is amazing! Westside trail, although following Rt. 302, has a lot of ups and downs and has a lot more elevation gain (and loss) than it reasonably should. It did a lot of meandering up and down the slope. Leaf litter made it a little obscured, but it was mostly not too hard to follow. There were many blazes. Kedron Flume trail is easy to follow and frequently used, and the Flume itself is a nice viewpoint. Willey Range trail is quite steep going up Willey, and the ladders are in varying stages of falling apart, but once you summit Willey it is gradual and relatively easy terrain. There is a nice ledge on Willey overlooking the notch, and a small window out on Field. Field had exceedingly friendly Canada Jays which landed on my hand, even though I wasn't holding out food. If you search around the summit of Mount Tom, there is a spot you can get a little view south through dead and blown down trees. A-Z trail going down the west side of Mount Tom was actually really nice. I was thinking it was going to be more obscure, but the trail was very well maintained and the forest was really pretty as well! Ethan Pond trail was excellent throughout. The view at the base of Whitewall is amazing, and Ethan Pond is a really pretty spot as well. There is a bridge over the North Fork East Branch Pemigewasset River at the crossing in between Thorough Falls and Shoal Pond trails.”
Trail: Avalon Trail, A-Z Trail, Mt. Tom Spur, Willey Range Trail
Conditions: Dry Trail, Wet Trail, Mud - Minor/Avoidable
“The Avalon trail is in great shape with good footing that makes for a fast ascent and descent. The A-Z trail was mostly dry which really helped with all the rock steps especially on the descent. The Willey Range trail is super fast to Field and then slows me down on the trek over the Willey. That little scree section just gets more and more eroded and there are numerous sections that are tight and really need a haircut. This was the first solo hike in a few days so I was missing my crew from last week but the universe provides. Lo and behold, I heard yelling and was delighted to bump into Stephanie! She was just what the doctor ordered. Lots of hugs and chatting and planning for Andrea's 366 finish made me so happy and I just cruised right on back to my car. Lots of friendly hikers out today and shout out to Robin and Kevin, who recognized me from Maine! Conditions are really pretty top notch right now which just made for the nicest morning.”
Tap a day header to expand to 3hr or hourly detail
Tuesday Sep 1 | Today Sep 2 | Tomorrow Sep 3 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| AM | PM | night | AM | PM | night | AM | PM | night | |
| Temperature & Wind | |||||||||
| Weather | cloudy | cloudy | fog | fog | drizzle | rain | rain | drizzle | sunny |
| Temp °F hi / lo | 55° 53° | 55° 54° | 54° 52° | 52° 50° | 52° 51° | 53° 50° | 56° 51° | 56° 55° | 58° 55° |
| Chill °F | — | — | — | 45° | — | 41° | — | — | — |
| Wind mph | 4 | 11 | 19 | 13 | 21 | 37 | 27 | 20 | 13 |
| Gust mph est. | — | 18 | 30 | 21 | 34 | 59 | 43 | 32 | 17 |
| Storm risk | — | — | — | — | — | — | — | — | — |
| Precipitation | |||||||||
| Precip in (rain/snow) | - | - | - | - | 0.1 | 1.0 | 0.2 | 0.1 | - |
| Freezing ft | 12,588 ft | 13,028 ft | 13,385 ft | ||||||
| Conditions | |||||||||
| Cloud cover | 98% | 100% | 100% | 100% | 100% | 100% | 100% | 90% | - |
| Vis mi | clear | clear | 0.1 | <0.1 | <0.1 | <0.1 | <0.1 | 2 | clear |
| UV | 3 | 7 | — | 1 | 1 | — | 0 | 4 | — |
Tap a day header to expand AM/PM/Night detail
| Elevation | Tuesday Sep 1 | Today Sep 2 | Tomorrow Sep 3 |
|---|---|---|---|
| lo/hi °F · wind mph & dir · chill °F | |||
| Summit 4,051 ft | 53/55° 4 | 50/52° 13 | 51/56° 27 |
| 3,300 ft | 55/57° 4 | 52/53° 12 | 52/58° 22 |
| 2,500 ft | 57/59° 4 | 54/55° 10 | 54/61° 16 |
| Trailhead 2,000 ft | 58/60° 3 | 55/56° 8 | 55/63° 13 |
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.
Easternmost Willey Range peak. Usually combined with Field and Willey for a long day.
Elevation
4,051 ft
Range
Willey
Rank
#40 of 48
Difficulty
Easy
Coordinates
44.2104, -71.4460
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