A new seasonal map of U.S. fall foliage hotspots highlights parts of Colorado, the Plains and the Midwest as likely to produce some of the most vibrant autumn color this year, and singles out Grand Marais, Minnesota — recently dubbed "America's Coolest Small Town" — as one of the best places to view the change.
Forecasters say bright reds, oranges and yellows are likely to be most impressive where spring and early-summer rainfall was steady, nights grow cool without early frost and severe weather has not stripped leaves from trees. The assessment, based on long-range outlooks, was summarized by AccuWeather.
Local writer Antonia Grant told the Daily Mail that Grand Marais, on the shore of Lake Superior, is "truly spectacular in the fall," with peak viewing generally from mid-September through mid-October. Visitors and residents are drawn to scenic routes, waterfront views and nearby trails, Grant said, and she recommended Lutsen Mountains gondola rides, the Alpine Slides and hikes on Oberg Mountain, Leveaux Mountain and in Grand Portage State Park to see the season’s best colors.
AccuWeather long-range expert Paul Pastelok said Colorado’s aspen groves are expected to stage a particularly notable show this season, and that New England states should also see strong color. He cautioned that while an early frost is possible across parts of Minnesota and the Dakotas, it should not "spoil foliage completely." The Carolinas are likely to produce appealing displays, but wind generated by an approaching hurricane or tropical storm could strip leaves before they reach peak color, he added.
Not all regions are expected to be vibrant. Pastelok highlighted southwestern Pennsylvania, western Maryland and parts of Virginia, West Virginia and Tennessee as areas likely to see duller-than-normal foliage because of fungus and insect damage this year. California and portions of the Pacific Northwest are forecast to have limited color because of drought, the potential for wildfire smoke and warm conditions that inhibit the typical color-change process.
The timing and intensity of fall color depend on interactions between weather and tree physiology. Chlorophyll, which makes leaves green, breaks down as temperatures and daylight decline; sugars trapped in leaves then determine the production of red and purple pigments, while yellow pigments typically become visible as chlorophyll fades. Sufficient moisture in the growing season and mild nights help enhance pigments, while late-season storms or prolonged drought can reduce intensity or prematurely end the display.
Grand Marais’s shoreline and nearby state lands give viewers multiple vantage points, and local guides and operators promote scenic drives and outdoor activities timed for peak color. The town sits near protected parkland that preserves mixed hardwoods and conifers, providing a spectrum of fall hues when conditions are favorable.
Forecasters urge travelers to monitor local updates, as localized weather events can alter peak timing and color intensity. For those planning trips to capture autumn color, AccuWeather’s long-range maps and regional forecasts can help identify likely windows of peak display and potential risks from storms, drought or insect outbreaks.
Photographers and sightseers who plan visits are advised to consider both peak-color windows and local amenities, and to be mindful of safety guidance in areas where wildfire smoke or storm damage may be present. As the season progresses, state and local park services typically post current reports on foliage conditions to help visitors plan trips.
With peak weeks approaching in many of the identified hotspots, tourism operators and park officials are preparing for increased visitation, while forecasters continue to refine regional outlooks as late-summer and early-autumn weather patterns evolve.