Great Falls sits where the Rocky Mountain front meets the northern Great Plains, a city built around the Missouri River and the five waterfalls that gave it its name. Known locally as the Electric City for its historic hydroelectric dams, this is Montana's third-largest city and a genuine gateway to both Glacier and Yellowstone National Parks. But Great Falls has its own pull: the C.M. Russell Museum preserves the legacy of one of America's most celebrated Western artists, the Lewis and Clark National Historic Trail Interpretive Center tells the story of the famous expedition's grueling month-long portage through this stretch of river, and over 50 miles of the River's Edge Trail follow the Missouri past waterfalls, springs, and prairie canyon views. Add Giant Springs State Park, one of the largest freshwater springs in the country, and a growing food and craft beer scene, and you have a place worth more than a gas stop on the way to Glacier.
The best time to visit Great Falls is late June through the end of September, when warm, dry weather opens up the full range of outdoor activities along the Missouri River and the city's event calendar peaks. The Montana State Fair, typically held in late July through early August, fills the ExpoPark with rodeo, live music, carnival rides, and classic fair food. The Great Falls Original Farmers' Market runs every Saturday morning from June through September, drawing around 150 vendors with local produce, baked goods, and handcrafted items. July is the busiest month, so if you prefer thinner crowds with similar weather, aim for September, when fall colors start creeping in and temperatures remain comfortable for hiking and cycling the River's Edge Trail.
Spring in Great Falls, MT, US
Spring arrives slowly in Great Falls. March still feels firmly like winter, with mornings dropping to lows near 31.5°F (-0.3°C) and snow still possible well into May. But there's one major reason to visit in March: Western Art Week, an annual celebration that transforms the city into what locals call the Western Art Capital of the World. For roughly five days in mid-March, art shows pop up across town, from hotel rooms converted into mini galleries to the Montana ExpoPark. The headline event is the Russell Auction, featuring original works by Charles M. Russell and other Western artists, alongside live music, quick-draw competitions, and an Indigenous Fashion Show. If Western art interests you at all, this is the event.
Outside of Western Art Week, spring is quiet. Afternoon highs gradually climb toward 57.5°F (14.2°C), but the wind can be biting, especially in March and April. May brings the wettest stretch of the year, with rain on roughly one in four days, so pack waterproof layers if you're heading out on the River's Edge Trail. Tourism is slow during these months, which means accommodation deals are easy to find. By late May, the prairie starts greening up and the Missouri River runs high with snowmelt, making it a dramatic time to see Rainbow Falls and the other cascades along the river. Bring proper layers, as mornings can still hover near freezing even in late April.
Summer in Great Falls, MT, US
Summer is when Great Falls fully comes alive. The Great Falls Original Farmers' Market opens on the first Saturday of June and runs through September, pulling in around 150 vendors each week with local honey, Hutterite-grown produce, baked goods, and handcrafted goods. The Lewis and Clark Festival, typically held across a weekend in late June at the Interpretive Center, features living history encampments, Native American performances, and guided explorations of the portage route the expedition struggled through in 1805. With nearly 16 hours of daylight in June and early July, the sun doesn't set until well after 9pm, giving you endless evenings to bike the River's Edge Trail or cast a fly line into the Missouri.
Seasonal highs average 83°F (28.4°C), and the low humidity (dipping below 31% in August) keeps the heat comfortable rather than oppressive. Mid-July brings the peak warmth, with highs reaching 89.7°F (32.1°C) and lows around 53.5°F (11.9°C), perfect weather for visiting Giant Springs State Park, where the spring water holds a constant 54°F year-round. The Montana State Fair, typically running from late July into early August, takes over the ExpoPark with rodeo action, horse racing, carnival rides, nightly concerts, and signature fair food. This is the busiest season, and accommodation prices rise accordingly, so book ahead if your trip overlaps with the fair.
Precipitation eases compared to May, with rain showing up only occasionally. Summer evenings cool down to around 50.1°F (10°C), so pack a light jacket for after-dark strolls. The Great Falls Voyagers play Pioneer League baseball at Centene Stadium through the summer; the team leans into the city's famous 1950 UFO sighting with an alien mascot and themed food. Between the trails, the river, and the museums, a few days in Great Falls fills up faster than you'd expect.
Fall in Great Falls, MT, US
September is an underrated window in Great Falls. The summer crowds thin noticeably, but temperatures stay comfortable for outdoor exploration, with afternoon highs averaging 61°F (16.1°C). The Farmers' Market continues through the last Saturday of September, and the River's Edge Trail is at its most photogenic as cottonwoods along the Missouri turn golden. Fly fishing on the Missouri picks up in fall as trout become more active, and the lower visitor volume means you'll have places like First Peoples Buffalo Jump State Park largely to yourself.
By October and into November, the chill sets in quickly. Morning lows drop to 34.9°F (1.6°C) on average, and the first snowfall can arrive by mid-October. Precipitation stays sporadic, with wet days scattered across the season, but the wind intensifies, especially in November. Daylight shrinks noticeably as well; by November, you're working with just over nine hours of usable light, so plan outdoor excursions for midday. The C.M. Russell Museum and Lewis and Clark Interpretive Center make excellent rainy-day or cold-weather stops. Accommodation prices dip slightly from summer peaks, making fall a good value window. Layering is essential: mornings can feel raw while afternoons warm up enough for comfortable walking.
Winter in Great Falls, MT, US
Winter in Great Falls is no joke. Highs average just 36.7°F (2.6°C) and lows sink to 16.6°F (-8.6°C), with occasional stretches that drop far colder when Arctic air pours south along the Rocky Mountain front. Daylight is limited to roughly eight and a half hours in December, so plan any outdoor time for midday. Wind picks up too; January is one of the windiest months of the year, making the cold feel even more intense. Snow covers the ground through much of the season, and the prairie landscape takes on a stark, quiet beauty.
That said, winter has its draws for the right traveler. Showdown Montana, the state's first ski hill, sits just a short drive from the city and offers a laid-back atmosphere with no lift lines, live weekend music, and full rental facilities. Cross-country skiing and snowshoeing at Silver Crest Trails provide a quieter alternative, and fat-biking at Gibson Park has become a popular local winter activity. The Downtown Christmas Stroll, typically held on the first Friday of December along Central Avenue, kicks off the holiday season with live music, food vendors, and family activities. Tourism hits its lowest point in winter, so you'll have the museums and restaurants mostly to yourself. Pack serious cold-weather gear: insulated boots, a windproof outer layer, and warm base layers are non-negotiable.
At a Glance
Monthly weather, visitor crowds, air quality, holidays, and daylight hours to help you plan your trip.
Travel Tips & Safety for Great Falls, MT, US
A rental car is essential for exploring Great Falls and the surrounding area. The city has its own international airport with several car rental options, though flights are often cheaper into Bozeman (about three hours south) or Billings. Public transportation is limited, and most attractions, including the waterfalls, trailheads, and First Peoples Buffalo Jump, require a short drive. If you're combining Great Falls with Glacier National Park, budget about two and a half hours for the drive north.
Great Falls is a safe, low-key city. The main hazards are weather-related: winter roads can be icy and wind-swept, so check conditions before driving on rural highways. In summer, the Missouri River current is strong, so exercise caution near the falls and dams. Carry water and sun protection on trail hikes, as shade is scarce on the open prairie stretches of the River's Edge Trail.