June in Grand Teton National Park is a good month: highs around 70°F, lows around 38°F. Crowds: busy — #3 busiest of the park's 12 months. Long days and early wildflowers, but Paintbrush Divide and other high passes often hold snow into July. The editorial best window here is July & September. You get about 15h 26m of daylight. To finish Paintbrush Canyon–Cascade Canyon Loop (8h 50m) before dark, leave the trailhead by about 12:14 PM.
Month data reviewed · how we check this
| Verdict | Good A solid visit with a caveat — usually crowds or heat. |
|---|---|
| Temps °F | 70° high / 38° low |
| Crowds | busy · #3 busiest of the park's 12 months |
| What June is like | Long days and early wildflowers, but Paintbrush Divide and other high passes often hold snow into July |
| Best window (whole year) | July & September |
| Peak crowds (whole year) | Jul–Aug |
CROWDS: RELATIVE SEASONALITY FROM NPS VISITATION STATISTICS · TEMPS: APPROXIMATE NOAA NORMALS AT MAIN VISITOR ELEVATION — HIGH COUNTRY RUNS 10–20°F COLDER
DAYLIGHT ON JUNE 15 · LOCAL PARK TIME (MDT)COMPUTED FROM THE PARK'S OWN COORDINATES FOR THE 15TH — THE MIDDLE OF THE MONTH STANDS FOR IT, AS IT DOES FOR CLIMATE NORMALS. WITHIN A MONTH THESE TIMES SHIFT BY UP TO AN HOUR
LEAVE THE TRAILHEAD BY — TO FINISH BEFORE DARK ON JUNE 15WALKING TIMES ESTIMATED FROM EACH TRAIL'S MEASURED DISTANCE AND ELEVATION GAIN — A PLANNING FIGURE, NOT A PACE. ADD YOUR OWN MARGIN FOR PHOTOS, REST AND CROWDS. WATER AT THE COOL-WEATHER RATE, BECAUSE THIS MONTH AVERAGES 70°F. TRAILS WE HAVE NOT MEASURED ARE LEFT OUT RATHER THAN GUESSED
WHAT JUNE ASKS OF YOU HEREGrand Teton National Park in July — Best window, highs around 79°F, crowds: peak crowds (wildflower peak and every trail here is typically snow-free — also the busiest month of the year).
Our verdict for June is "Good". A solid visit with a caveat — usually crowds or heat. Expect highs around 70°F and lows around 38°F, with crowds at the "busy" level. Temperatures are approximate NOAA normals at the main visitor elevation; crowd levels follow published NPS visitation statistics.
Across the full 12-month review, the best window is July & September, and the peak-crowd months are Jul–Aug. June itself we rate "Good".
July we rate "Best window" against "Good" for June, with highs around 79°F and crowds at the "peak crowds" level.
About 15h 26m on June 15: the sun rises around 5:40 AM and sets around 9:06 PM local park time (MDT). Computed from the park's own coordinates, so it is the light you actually get at the trailhead, not the nearest city's.
Paintbrush Canyon–Cascade Canyon Loop takes about 8h 50m of walking, so on June 15 you would need to leave the trailhead by about 12:14 PM to finish before dark — the sun sets around 9:06 PM local park time (MDT). Walking times are estimated from each trail's measured distance and elevation gain, so treat them as a planning figure and add your own margin for photos, rest and crowds.
Get a heads-up before timed-entry and lottery windows open — plus new guides for the parks you care about.
FREE · NO SPAM · UNSUBSCRIBE IN ONE TAP
© 2026 StayNear National Parks · About · Methodology · Privacy · Terms · Affiliate disclosure · Refunds