June weather guide

Weather in Yellowstone in June

Everything opens, waterfalls at full flow

Score79Great
Typical day21°C70°F · low 6°C
Rain & sun47mm10.2 hrs sun/day
Green summer meadows and a winding river in Hayden Valley, Yellowstone
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Institutional byline · Updated

What the weather is like in June

Avg high
21°C
70°F
Avg low
6°C
43°F
Rainfall
47mm
best
Sun / day
10.2 hrs

All roads and facilities are typically open, and waterfalls run at their peak. It is the wettest month at Mammoth at about 47mm, and snow is still possible at high elevations. Nights stay cold, and high water limits some backcountry sites.

Against May, June runs 6°C warmer with much the same rainfall and 1.1 hours more sun a day.

These June averages are station normals for Mammoth, Yellowstone National Park (NOAA NCEI normals (sunshine: Billings, Montana, NOAA 1961-1990, via Wikipedia), 1991-2020); other parts of Yellowstone vary. Full sources below.

Yellowstone in June, on the ground

June is when Yellowstone fully opens. All roads and facilities are typically running, campgrounds are open by mid-month, boat services start on Yellowstone Lake and the waterfalls run at full volume. It is still the wettest month at Mammoth, and the National Park Service says snow is possible up high until the end of the month.

Crowds and prices in June

The National Park Service rates June as busiest, with about 781,000 visits in an average year against 401,000 in May and 948,000 in July. Rooms inside the park fill quickly, so book those first. Early June is the quieter end of the month.

What to do in June

  • See Lower Falls at the Grand Canyon of the Yellowstone at its peak flow.
  • Look for bighorn sheep with lambs near Calcite Springs Overlook and in Lamar Valley.
  • Take a boat tour on Yellowstone Lake, which starts running in mid-June.
  • Reach an entrance before 7 am, as the park advises, to beat the traffic at the main sights.

Before you book: Bears move to higher ground and are harder to see than in May, and many high trails hold snow until late June or even July.

What to pack for Yellowstone in June

  • Layers — warm afternoons, cool evenings
  • A mid-weight jacket

Is June the right month?

Yellowstone's best month, September, is three months after June; the toughest, November, is five months after. If June does not fit, July is the closest month in the same best-season window. For the best balance of good conditions and smaller crowds, aim for May. See the full month-by-month breakdown for Yellowstone, or where else to go in June.

Where to stay in June

June is peak season in Yellowstone, so prices are at their highest. Book early for the best choice of rooms. For every area compared on airport trains and price, see the where to stay in Yellowstone.

  • West Yellowstone$$
    Old Faithful and the geyser basinsThe town at the West Entrance, with the largest choice of rooms just outside the park. It is about 30 minutes to Madison Junction, then 35 to 45 minutes on to Old Faithful. Snowcoach tours also leave from here in winter.See hotels in West Yellowstone for 12–18 Jun 2027
  • Gardiner$$
    Lamar Valley wildlife and winter tripsThe small town at the North Entrance, 15 minutes from Mammoth Hot Springs. It is on the only park road open to cars all year, so it is the best base for winter wildlife watching in Lamar Valley.See hotels in Gardiner for 12–18 Jun 2027
  • Cody$$
    Yellowstone Lake and a town with museumsA larger town about 52 miles and 75 minutes east of the East Entrance, with its own year-round airport. It is a longer drive in, but the road through the Shoshone valley is scenic, and it works for a first or last night.See hotels in Cody for 12–18 Jun 2027
  • Jackson$$
    Combining Yellowstone with Grand TetonThe town south of Grand Teton National Park, with a year-round airport. The South Entrance is about 57 miles and 90 minutes north, so it suits a two-park trip more than daily drives into Yellowstone.See hotels in Jackson for 12–18 Jun 2027

Links open a hotel search for 12–18 Jun 2027; you can change the dates there. We may earn a commission, at no extra cost to you.

Before you go

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Frequently asked questions

What is the weather like in Yellowstone in June?
At Mammoth Hot Springs in Yellowstone, June averages highs of 21°C (70°F) and lows of 6°C (43°F), with about 47mm of rain and 10.2 hours of sun a day. June is one of the best months to visit: all roads and facilities are typically open, and waterfalls are at full flow. Higher parts of the park run several degrees colder, and snow is still possible up high.
Is June a good time to visit Yellowstone?
June scores 79/100 on the Atlas Ranger Score — "Great" — which blends weather with crowds and price. June is one of the best months to visit Yellowstone — strong conditions and the reason many travellers pick this window.
How warm is Yellowstone in June?
Expect daytime highs around 21°C (70°F) and overnight lows near 6°C (43°F), with about 10.2 hours of sun a day.
Does it rain in Yellowstone in June?
June sees roughly 47mm of rain — relatively dry.
What should I pack for Yellowstone in June?
For June, pack: Layers — warm afternoons, cool evenings; A mid-weight jacket.
How far ahead should I book Yellowstone for June?
June is one of the busier months, so the best places go first. Book several months out, and take a rate you can cancel if your dates might move.

Sources: National Park Service: Yellowstone seasons · NOAA NCEI: Mammoth, 1991-2020 normals · National Park Service: Yellowstone safety · National Park Service: visitation statistics · National Park Service: park roads · NOAA: Billings, Montana sunshine, 1961-1990. Full provenance on the Yellowstone guide.

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