Great Basin National Park weather in June

June in Great Basin National Park: cool, dry — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Great Basin National Park🇺🇸 United States · Rockies · National park90
  1. 48Jan
  2. 53Feb
  3. 60Mar
  4. 72Apr
  5. 77May
  6. 90Jun
  7. 95Jul
  8. 93Aug
  9. 87Sep
  10. 79Oct
  11. 69Nov
  12. 56Dec

#3 of 12 months in Great Basin National Park · #225 of 1413 destinations to visit in June · comfort 90/100 (tier S)

Days
16°C
Nights
4°C
Wet days
2
Sun
13.3 h
Humidity
25%
Daylight
15 h
Great Basin National Park, United States
Photo: James R Bouldin · Public domain

Traveller notes on Great Basin National Park in June

Other months in Great Basin National Park

Great Basin-forum reviews on a January visit describe one Lehman Caves tour as genuinely personalized, the visitor naming themselves one of only four people on that day's single tour. Regulars call Wheeler Peak Scenic Drive genuinely closed to vehicles in January, several posters naming it still open to skiers and snowshoers instead. Posters call Lower Lehman Creek Campground the only real option staying open through winter, several regulars naming this the standard camping choice for a January visit. Regulars call the park genuinely beautiful and peaceful this time of year, several threads naming light visitation as a real draw despite thirty to forty inches of snow being possible in a given winter month. Posters recommend checking current cave tour availability before a January trip, several regulars calling this standard given how limited winter scheduling can be. The record: -1.8C days, -10.5C nights, 84.2mm across nearly 11 days and 67 percent humidity.
GreatBasinJanuaryRegular · January · 1 month ago · Read more on Tripadvisor ↗
Great Basin-forum threads on an April visit describe most of the park's higher terrain as still inaccessible, posters calling the scenic drive up to Wheeler Peak typically closed until Memorial Day weekend regardless of how mild April feels. Regulars call real accumulation still possible, conditions varying enough that a mild stretch is just as plausible as a real storm. Posters call Lehman Cave tours a genuine highlight regardless of surface conditions, several recommending booking through the park website ahead of an April visit. Regulars recommend checking road status before a day trip, one visitor specifically asking whether Wheeler Peak Drive would be open with only a single day available. Posters recommend real cold-weather layers regardless of how the valley floor looks, elevation delivering a considerably different April than the drive up suggests. The record: 6C days feeling like 4C, -5.4C nights, an extraordinarily high 67.6mm across nearly 9 days and 62 percent humidity.
GreatBasinAprilRegular · April · 1 month ago · Read more on Tripadvisor ↗
Great Basin-forum threads on a November visit describe upper elevations as genuinely snowbound by this point, posters calling the Bristlecone Pine Forest and Alpine Lakes trails effectively closed around Thanksgiving. Regulars call the Lehman Caves tour the one activity reliably still running, real underground access regardless of surface conditions. Posters describe the park's elevation range, roughly five thousand to over thirteen thousand feet, as making autumn and winter genuinely brisk even at the lower stretches. Regulars call snow season here running broadly October through spring, November sitting solidly inside that window. Posters recommend checking current road status before planning any higher-elevation activity, conditions capable of closing routes with little warning. Regulars recommend real cold-weather layers regardless of which part of the park is on the itinerary. The record: 4.2C days feeling like 0C, -6C nights, 45.8mm across over 8 days and 49 percent humidity.
GreatBasinNovemberRegular · November · 1 month ago · Read more on Tripadvisor ↗
Great Basin-forum threads comparing September and October describe this as a genuine transition window, real risk of an early system, Wheeler Peak's trailhead above ten thousand feet already reporting a dusting by month's end some years. Posters call the park's dramatic elevation range, from around five thousand feet up past thirteen thousand at the summit, a real factor in how much conditions vary. Regulars describe autumn here as genuinely brisk overall, comfortable at lower elevation while the high country turns properly wintry ahead of the calendar. Posters recommend checking current road and campground status before a route, some higher sections closing once real accumulation arrives. Regulars call the bristlecone pine groves and cave tours worth the trip regardless of conditions. Posters recommend real layers given how unpredictable October runs at elevation. The record: 8.5C days feeling like 5C, -2.2C nights, a notably high 3cm of fresh accumulation and 41 percent humidity.
GreatBasinOctoberRegular · October · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Great Basin National Park's card on the map.

Great Basin National Park climate normals — June

Daytime high16°C / 61°F🙂 cool
Nighttime low4°C / 39°F
Feels like (high)13°C / 55°F
Rainfall17 mm / 0.7 in☀️ dry
Rainy days2 days
Humidity25%🌵 dry
Dew point-9°C / 16°F
Sunshine13.3 h/day
Daylight14.9 h
Wind15 km/h / 9 mph
Air quality (US AQI)60🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Great Basin National Park in June

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusySummer break in United States, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Great Basin National Park's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherGreat Basin National Park's weather peaks June–August, best around July.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Great Basin National Park in June

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Summer astronomy programmes

    24 May – 7 Sep · usuallyDark-sky season

    Roughly from Memorial Day to Labor Day, rangers give an evening talk followed by telescope viewing at the astronomy amphitheatre, Thursday to Sunday; no booking, but numbers are capped by the parking. Source ↗

What's on around the world in June →

Nearby, and something's on

Within 300 km of Great Basin National Park — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Great Basin National Park?

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Great Basin National Park in June — FAQ

Is June a good time to visit Great Basin National Park?
June in Great Basin National Park: cool, dry — an excellent time to visit. It ranks #3 of 12 months for Great Basin National Park on SeasonMap's comfort score (90/100).
What is the weather like in Great Basin National Park in June?
In June, Great Basin National Park averages a daily high of 16.1°C and a low of 3.8°C, with about 17 mm of rain over roughly 2.2 rainy days.
What is the air quality in Great Basin National Park in June?
Great Basin National Park has a mean US Air Quality Index of about 60 in June.

Within 300 km: Zion National Park's California condors over the canyon on 1 Jan – 31 Dec, and Bryce Canyon National Park's Milky Way season around 1 May – 30 Sep.