What to look for in nature in Wisconsin this October

When is peak fall color in Wisconsin in 2026?

• The Northwoods

  Late September through the first week of October · Vilas, Oneida, Price, Phillips and Mercer; the Chequamegon-Nicolet National Forest

  By September 30, spotters had Mercer, Phillips and southern Price County at about 70 percent, and most of the Northwoods was expected to peak in the first full week of October. Maples supply the scarlet and orange; quaking aspen and paper birch go butter yellow. One windy night or a hard frost can end it, so go early rather than wait for perfect weather.

• The Fox Valley and Green Bay

  Mid-to-late October · Shawano, Oshkosh, Green Bay, the Door Peninsula

  Shawano and Oshkosh were near 50 percent at the end of September, and Brown County’s spotter put Green Bay at about 20 percent, with its peak forecast for the fourth week of October; she named Bay Shore Park, the Bay Beach Wildlife Sanctuary and the UW–Green Bay campus as the best places to look. Lake Michigan keeps the Door shoreline mild, so its maples tend to hold on later than those inland.

• The south and the Driftless

  The week before Halloween · Madison, the Baraboo Hills, the Kettle Moraine, the Kickapoo valley and the Mississippi bluffs

  Drought in Dane County and the south was only moderate, and the State Climatology Office’s Amanda Latham said it should not do much harm to the color there; she expected south central Wisconsin to peak the week before Halloween unless an early frost cut it short. Oak, hickory and sumac on the bluffs, with cottonwoods yellow in the river bottoms, are usually the last to turn.

• Tamaracks, the last gold

  Late October, after the hardwoods · Sphagnum bogs and wet lowlands, most of all in the north

  Tamarack is a conifer that behaves like a hardwood: the USDA plant guide describes its soft needles “yellowing and shed in the fall.” It grows in poorly drained sphagnum bogs and muskegs, so a Northwoods bog glows gold after the maples are bare. Its small upright cones stay on the twigs through winter.

Where can you see sandhill cranes and geese in Wisconsin in October?

• Crex Meadows, Burnett County

  Building from early October; peak at the end of the month or early November · Crex Meadows Wildlife Area, Grantsburg

  Crex is 30,000 acres of restored wetland and brush prairie run by the DNR, and it holds the biggest fall crane gathering in the state. Friends of Crex say the birds increase daily from early October to a peak at the end of the month or in early November, depending on weather, and stay until the marshes freeze, usually by mid-to-late November. Watch from Main Dike Road as they leave in the morning and return at dusk. The free Sunset with the Sandhills tours run 5 to 7 p.m. on October 14, 20, 22 and 24, with an RSVP, and the annual Fall Festival fills the wildlife area with talks and tours on Saturday, October 10.

• Horicon Marsh

  Geese from mid-September; peak late October to mid-November · Horicon National Wildlife Refuge and Horicon Marsh State Wildlife Area, Dodge and Fond du Lac counties

  At more than 33,000 acres, Horicon is one of the largest freshwater marshes in the country; the federal refuge holds the northern two-thirds and the state the southern third. The DNR says 100,000 to 200,000 Canada geese of the Mississippi Valley Population stop each fall, peaking from late October to mid-November, and ducks reach their numbers in October. The state’s free Evening Marsh and Crane Watch at the Education and Visitor Center on Highway 28 is Saturday, October 10, 5 to 6:30 p.m., with soup and no registration; its guided bus tour, Ducks, Geese, Cranes Oh My!, is Saturday, October 17, 3 to 6:15 p.m., $15 with pre-registration. The refuge’s three-mile auto tour stays open until the day before the gun deer season.

• Whooping cranes

  Through October · Horicon and Necedah national wildlife refuges; the International Crane Foundation near Baraboo

  A few endangered whooping cranes of the eastern flock summer in Wisconsin and linger into fall among the sandhills. The International Crane Foundation leads monthly guided whooping crane walks, 9 to 10 a.m., at Horicon and, new this year, Necedah, through October; the Horicon refuge lists one for Thursday, October 8, so confirm with the Foundation before you go. Its own grounds near Baraboo, home to all of the world’s crane species, close for the season after Saturday, October 31, and on October 24 it holds a Good Neighbor Day with a food-pantry donation as the price of admission; check the Foundation’s calendar before you go.

• Canvasbacks and swans on the Mississippi

  Mid-October until freeze-up · Upper Mississippi River National Wildlife and Fish Refuge, from Alma to Prairie du Chien

  The refuge follows the river for about 261 miles through four states, and the Fish and Wildlife Service says big flocks of tundra swans and rafts of canvasbacks gather there “between mid-October and the winter freeze-up.” The canvasbacks come for wild celery in the backwater pools; the swans build later, into November. In late October, scan the pools below La Crosse from the river roads and landings for the first long white lines on the water.

What other birds are moving through Wisconsin in October?

• Hawks along Lake Michigan

  Mid-August to mid-November; big birds in October · Cedar Grove (Sheboygan County); Forest Beach Migratory Preserve near Belgium; Concordia University in Mequon

  Cedar Grove, on an old beach ridge of glacial Lake Algonquin, has trapped and banded migrating raptors since the 1940s, the longest such record in North America, with more than 38,000 birds of 24 species handled. It is a research station and State Natural Area that needs permission to visit, so watch from the public counts instead: HawkCount lists fall watches at Forest Beach and Concordia on the same shore, Rib Mountain near Wausau and Eagle Valley on the Mississippi. October brings red-tails, harriers, the first rough-legged hawks and golden eagles on northwest winds behind a cold front.

• Across the bay at Hawk Ridge

  Daily through November 30 · Duluth, a short drive from Superior

  For Superior and Douglas County, the best raptor show is just over the bridge. Hawk Ridge averages more than 60,000 raptors each fall and calls October the month of the big birds: eagles, red-tails, rough-legs and goshawks. This September it also logged more than 13,000 blue jays in a single day.

• Winter finches

  October into November · Conifers and forest edges before feeders

  The Finch Research Network’s forecast of September 25 expects plenty of pine siskins in the region, drawn to cedar and hemlock seed, and at most a small-to-modest redpoll flight in the western Great Lakes. It sees few pine grosbeaks or bohemian waxwings, a small purple finch flight, and good cone crops keeping most red-breasted nuthatches farther north. With wild food abundant, many birds will stay in the woods rather than visit feeders, while sparrows and the first juncos fill the backyard brush piles.

When do salmon run up Wisconsin rivers in the fall?

• Strawberry Creek, Door County

  Usually the first three weeks of October · East of Sturgeon Bay

  This is the DNR’s chinook station, and it typically runs for the first three weeks of October, open to visitors from 9 a.m. to 2 p.m. while crews are working. Fish that have spent several years in the lake crowd the pond below the ladder, dark and battered from the trip.

• Open houses at Kewaunee and Racine

  Saturday, October 10, 9 a.m. to 3 p.m. · C.D. Besadny Anadromous Fish Facility, Kewaunee; Root River Steelhead Facility, Lincoln Park, Racine

  Both stations open their doors the same Saturday, free. At Kewaunee, staff demonstrate salmon egg collection and give guided tours, and local sport fishermen run wagon rides from the parking area until 2 p.m. At Racine, the DNR explains how steelhead, coho and chinook are captured and why the eggs are taken, with fly-casting and fly-tying for children and a trolling boat to climb aboard. On other days the Root River viewing window is open in daylight whenever the station is running.

When is the first frost and freeze in Wisconsin?

How much daylight does Wisconsin lose in October?

What is October weather like in Wisconsin, and what will El Niño mean this winter?

What can you see in the Wisconsin night sky in October?

• The moon passes in front of Jupiter

  Tuesday, October 6, about 3:24 to 4:17 a.m. CDT · Low in the east; the moon 9 to 11 degrees up at the start, 16 to 20 at the end

  A crescent moon, one-fifth lit, clears the eastern horizon a little after 2 a.m. with Jupiter almost touching it. IOTA’s tables put the disappearance, at the moon’s sunlit edge, at 3:24 a.m. for Madison and Milwaukee, 3:27 for Green Bay, 3:28 for Antigo and 3:32 for Duluth, the nearest listed point to Superior. Jupiter slides back into view at the unlit edge around 4:17 in Milwaukee, 4:16 in Madison, Green Bay and Antigo, and 4:13 in Duluth. Sunrise is not until about 7, so both moments happen in a black sky. Binoculars show Jupiter’s moons vanishing one by one. You need a low, clear eastern horizon, which along Lake Michigan means the shore itself.

• The Hunter’s Moon

  Evenings of Sunday, October 25, and Monday, October 26 · Low in the east at dusk

  Full phase arrives at 11:12 p.m. CDT Sunday. In Madison the moon rises at 5:24 p.m. that evening, 35 minutes before the 5:59 sunset, and at 5:55 on Monday, three minutes before sunset; Milwaukee’s Sunday moonrise is 5:18. It is not a supermoon, whatever you read, just a fine orange moon over the corn stubble.

• Orionid meteors

  Active October 2 to November 7; best before dawn on October 21 and 22 · Anywhere dark, looking high in the southeast

  Debris from Halley’s Comet makes this shower, and its peak is broad and gentle. The waxing gibbous moon spoils things until moonset: about 3:09 a.m. in Milwaukee, 3:15 in Madison and 3:23 in Superior on Thursday the 22nd, roughly an hour earlier the day before. That leaves three-plus dark hours before the eastern sky starts to pale around 6:45 to 7. Drive away from town lights and give it an hour.

• Draconid meteors

  Evening of Thursday, October 8 · High in the north after dusk

  Slow and usually sparse, the Draconids favor the hours right after dark, so children can watch without staying up late. With a waning sliver of moon not due up till near dawn, Thursday evening is moonless. Count what you see in 20 minutes and write the number down.

• Saturn all night, Venus leaving, Jupiter and Mars before dawn

  Saturn at opposition October 4; Mars at the Beehive October 11 · Saturn in the east at dusk; Jupiter and Mars in the east before sunrise

  Opposition night for Saturn is October 4: over Wisconsin it lifts above the eastern tree line around sunset, sinks in the west near sunrise, and glows as a steady pale-yellow point, with the moon keeping it company on the 23rd and 24th. Catch Venus, if you can, just above the west-southwest horizon in the first few evenings; it then vanishes into the sunset glow and passes inferior conjunction on the 23rd. Get up before the school bus and Jupiter is the dazzler in the east, with fainter, orange Mars above it. On October 11 Mars wanders across the Beehive cluster, a pretty pairing in binoculars.

• Dark skies and candlelight

  October 23 and 24 · Newport State Park, Door County; Yerkes Observatory, Williams Bay

  Newport State Park, at the tip of the Door Peninsula, was named Wisconsin’s first International Dark Sky Park. Yerkes Observatory holds its Candlelight Walk on Friday and Saturday, October 23 and 24, 7 to 9:30 p.m., with about 2,000 candles across the 50-acre grounds and the great dome lit inside; tickets are $15 for adults and $10 for those 18 and under, with parking and a shuttle at Williams Bay High School.

What is blooming, ripening and dropping in Wisconsin in October?

• Cranberries come off the marsh

  Late September through October · Central Sands around Wisconsin Rapids and Warrens; the Northwoods around Eagle River and Manitowish Waters

  The cranberry is Wisconsin’s state fruit and its largest fruit crop, and the harvest begins in the last days of September. Growers flood the beds, churn the vines so the berries float free, and corral them with booms into a red raft. The Eagle River Cranberry Fest is Saturday and Sunday, October 3–4, at the Vilas County Fairgrounds and downtown, and marsh tours leave from the Eagle River chamber office October 1–4 ($10 adults, $5 ages 6 to 12; reservations recommended). The growers’ association also lists a cranberry festival with marsh tours at Stone Lake, in Sawyer County, on October 3; confirm with the organizers before driving up.

• Witch hazel, the year’s last flower

  October into November · Moist hardwood slopes and ravines in the southern and central counties

  American witch hazel blooms as its own leaves yellow and fall. Per the Wildflower Center, it flowers from September through December: fragrant yellow blossoms with crumpled, ribbon-like petals about an inch long. Last year’s capsules, still on the same twigs, dry and split, and can throw seeds up to 30 feet. On a dry afternoon, stand still near a shrub and listen for the click.

What are elk, deer, insects and other animals doing in October?

• Elk in the Clam Lake and Black River country

  Rut in September; the elk hunt runs October 17 to December 13 · Around Clam Lake (Sawyer, Ashland, Bayfield, Price and Rusk counties) and near Black River State Forest in Jackson County

  Wisconsin’s elk, reintroduced from 25 animals in 1995, number about 383 in the northern herd and a projected 226 in the central herd, by DNR estimates as of July 2026. Bulls bugle through the September rut, and the DNR asks visitors not to pressure or call to elk while it lasts. The DNR’s advice: go at dawn or dusk, drive slowly, stay in the car, and never call to or approach the animals. A kiosk at Highways 77 and GG in Clam Lake has maps.

• Deer on the move

  Scrapes and rubs from mid-October; breeding peaks in November · Farm edges, woodlots and every rural road at dusk

  October is the run-up to the rut. Bucks strip the bark from saplings and scrape bare patches beneath overhanging limbs. Expect more deer on the pavement at first light and in the first hour of darkness.

• Lady beetles on the west wall

  Late September through October, on warm afternoons after a cold night · Sunny west and southwest sides of houses

  UW–Madison Extension says multicolored Asian lady beetles gather first on a building’s west or southwest side, and many leave again by nightfall; the rest look for a crack to winter in. Seal gaps around windows and siding now. Indoors, vacuum them rather than crush them, because they bleed a staining yellow fluid from their leg joints.

• Monarchs: stragglers only

  The main flight passed in early and mid-September · Aster and goldenrod patches on warm days

  By Monarch Watch’s latitude table, the heaviest flight crosses 45° N, the latitude of Wausau and Eau Claire, from August 29 to September 10, and at 43° N, Madison and Milwaukee, September 3–15. Any monarch still here in October is running late; send the sighting to Journey North and noting on the pollinator watch page with the date and the temperature.

What are the best outdoor outings for Wisconsin families in October?

Safety notes for October in Wisconsin