When do leaves peak in Alaska in 2026?

Peak color is predicted for August 26–September 9 (best estimate September 2). Color starts around August 18 and trees are mostly bare by September 21.

How reliable is the Alaska forecast?

The forecast blends recent-year weather normals with photoperiod and elevation; it tightens as the season approaches. Against published peak dates the model lands within a few days for most regions, but it can be a week or more out — mountains and coastlines are the hardest. Higher elevations turn roughly one day earlier per 300 m.

What are the best things to do in fall in Alaska?

The iconic stops: Denali National Park, Hatcher Pass, Alaska State Fair, Pyrah's Pioneer Peak Farm Fall Harvest Festival, Reindeer Farm Fall Family Fun Event, Haunted Trails at Goose Lake Park. Every one is mapped on this page with its peak-color timing.

What are the best things to do in autumn in Alaska?

Autumn — autumn (September–November) — is peak season here. Pair the color with Denali National Park, Hatcher Pass, Alaska State Fair, Pyrah's Pioneer Peak Farm Fall Harvest Festival, Reindeer Farm Fall Family Fun Event; each is on the map above with the window to catch it.

When do the leaves change in Alaska?

Birch and aspen turn the Interior gold around Denali and Fairbanks with striking speed, often peaking in the first week of September, the earliest color of any US region tracked here.

Autumn foliage at Denali National Park — 📍 Denali National Park, Alaska· Photo: Denali National Park and Preserve / Wikimedia Commons, Public domain

2026 Forecast457 weather anchors

Peak: August 26–September 9

Color builds from August 18 · mostly bare by September 21

Method: daily ERA5 temperatures (Open-Meteo) drive a photoperiod + chilling phenology model; terrain shifts timing ~1 day earlier per 300 m of elevation. Temperature alone can’t tell a maritime autumn from a continental one — two places at the same latitude and the same September can peak weeks apart, because the trees differ — so each region is also calibrated against published peak dates. Estimates, not promises: typically within a few days, occasionally a week or more out. Check locally before you travel.

Known for

Denali National Park
Fairbanks birch groves
Chena River valley

Things to do in fall in Alaska

6 iconic stops — scenic drives, farms, haunts, and the views locals plan their October around.

Denali National Park

National park

Peak August 31 2026 forecast

Denali's tundra turns crimson and gold in the first weeks of September, weeks ahead of any deciduous color farther south. Savage River, at Mile 15, is the last point drivable by private vehicle and puts hikers straight into the color.

Don’t miss: Savage River tundra hike · Early-September color · Dall sheep and caribou country

Hatcher Pass

Scenic drive

Peak August 21 2026 forecast

Hatcher Pass Road climbs from Palmer into alpine tundra that turns red and gold by early September, with the ghost buildings of Independence Mine State Historical Park as its centerpiece. The road typically closes with the season's first real snow.

Don’t miss: Independence Mine ghost buildings · Alpine tundra color · Talkeetna Mountains views

Alaska State Fair

Fall festival

Aug 21 – Sep 7 Color nearby peaks August 23 2026 forecast

Alaska's biggest annual event takes over the Palmer fairgrounds in the Matanuska Valley for about twelve days at summer's end, long famous for the giant-vegetable weigh-offs that crown record-breaking cabbages. The 2026 fair runs August 21 through Labor Day on September 7, with concerts, carnival rides and food.

Don’t miss: Giant-vegetable weigh-offs · Concerts and carnival rides · Twelve days to Labor Day

Pyrah's Pioneer Peak Farm Fall Harvest Festival

Fall festival

Dates TBA Color nearby peaks August 23 2026 forecast

A pick-your-own farm below Pioneer Peak in the Matanuska Valley, worked by the Pyrah family for three decades. Its Fall Harvest Festival, running since 2005, opens the pumpkin patch on September Saturdays with hayrides, a maze, barnyard animals and games for a flat all-day admission.

Don’t miss: U-pick pumpkin patch · Fall Harvest Festival since 2005 · Below Pioneer Peak

Reindeer Farm Fall Family Fun Event

Pumpkin patch

Dates TBA Color nearby peaks August 23 2026 forecast

The Matanuska Valley's reindeer farm adds a self guided Fall Family Fun Event each October, with a pumpkin patch and hay maze alongside the usual reindeer feeding and tractor rides. Tickets sell out early most years, so this is not a same day walk up plan.

Don’t miss: Reindeer feeding and tractor rides · Pumpkin patch and hay maze · Self-guided, October only

Haunted Trails at Goose Lake Park

Haunted attraction

Oct 16 – Oct 17 Color nearby peaks September 2 2026 forecast

Anchorage Parks and Recreation turns a stretch of Goose Lake Park into a scare route after dark for one October night, with a gentler Enchanted Trail version for younger kids the next afternoon. A shuttle runs from the University of Alaska Anchorage for both events.

Don’t miss: Nighttime haunted trail walk · Family-friendly Enchanted Trail the next day · Shuttle from UAA

Guides

2026 Fall Foliage Forecast: When Leaves Peak in Every State

Our 2026 fall foliage forecast for the US and Canada, region by region, built from ERA5 weather data and a phenology model, with live peak dates on the map.

Frequently asked

When do leaves peak in Alaska in 2026?: Peak color is predicted for August 26–September 9 (best estimate September 2). Color starts around August 18 and trees are mostly bare by September 21.
How reliable is the Alaska forecast?: The forecast blends recent-year weather normals with photoperiod and elevation; it tightens as the season approaches. Against published peak dates the model lands within a few days for most regions, but it can be a week or more out — mountains and coastlines are the hardest. Higher elevations turn roughly one day earlier per 300 m.
When is Alaska's autumn season?: Alaska colors during autumn (September–November). Birch and aspen turn the Interior gold around Denali and Fairbanks with striking speed, often peaking in the first week of September, the earliest color of any US region tracked here.
What are the best things to do in fall in Alaska?: The iconic stops: Denali National Park, Hatcher Pass, Alaska State Fair, Pyrah's Pioneer Peak Farm Fall Harvest Festival, Reindeer Farm Fall Family Fun Event, Haunted Trails at Goose Lake Park. Every one is mapped on this page with its peak-color timing.
What are the best things to do in autumn in Alaska?: Autumn — autumn (September–November) — is peak season here. Pair the color with Denali National Park, Hatcher Pass, Alaska State Fair, Pyrah's Pioneer Peak Farm Fall Harvest Festival, Reindeer Farm Fall Family Fun Event; each is on the map above with the window to catch it.

See it on the map