Mid-summer · Weather & things to do
Yellowstone in July
Yellowstone's warmest month brings highs averaging 72°F (22°C), lows of 46°F (8°C) and about 1.5 in (37 mm) of rain.
July opens the best stretch on our comfort score, at 97/100 (the top score of the year).
- Avg high
- 72°F (22°C)
- Avg low
- 46°F (8°C)
- Rain
- 1.5 in (37 mm)
- Humidity
- 59%
- Cloud cover
- 39%
- Daylight
- ~15 h 03 min
- Comfort score
- 97/100 · Great
What July feels like
Days are warm, averaging 72°F (22°C), easy weather for being outside from morning to evening.
There's a big swing between day and night, about 15°C (26°F), so mornings and evenings feel much cooler than the afternoon.
About 1.5 in (37 mm) of rain falls in a typical year's July.
Long days help: there are roughly 15 h 03 min of daylight mid-month.
Plan around July
July is one of Yellowstone's best months on the climate data.
- First warm month: highs reach 72°F, up from 61°F in June.
- The drier spell starts: rain falls to 1.5 in (37 mm) after 2.8 in (70 mm) in June.
- Opens the best-scoring stretch on our comfort score: July – September.
- Comfort improves from 81/100 in June to 97/100.
- Our Grand Teton, Jackson & Yellowstone route recommends Mid-Dec – Mar, so July falls outside its suggested window.
What to pack for July
- Light, breathable clothes72°F afternoons
- Sunscreen, sunglasses and a hatstrong sun this month
- A warm layer for eveningslows near 46°F
- Comfortable walking shoesmost picks involve some walking
What to do in Yellowstone in July
July is good outdoor weather here, so these picks lean toward the open air.
Old Faithful
Yellowstone's best-known geyser, erupting about every 60 to 110 minutes; in winter the plume of steam towers over the snow.
Why now July scores 97/100 for comfort, good conditions for being outside.
Lamar Valley
Wide valley in northeast Yellowstone with bison, elk and the park's best chances of seeing wolves in winter.
Why now Highs near 72°F and 1.5 in of monthly rain make this an easy outdoor pick.
West Yellowstone
Montana gateway town at the West Entrance, where most snowcoach and guided snowmobile tours to Old Faithful begin.
Why now One to do outside while the weather is on your side.
Grand Canyon of the Yellowstone
Yellow-walled canyon where the 308-foot Lower Falls builds a huge cone of ice in winter.
Nearby in July
- Yellowstone National Park in July~13 mi · highs 72°F, 1.5 in rain · similar daytime temperatures, about as wet
- Grand Teton National Park in July~57 mi · highs 77°F, 1.2 in rain · 3°C (5°F) warmer by day, about as wet
- Jackson in July~79 mi · highs 82°F, 0.9 in rain · 6°C (10°F) warmer by day, about as wet
- Salt Lake City in July~274 mi · highs 93°F, 0.6 in rain · 12°C (21°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Yellowstone in July: quick answers
Is July a good time to visit Yellowstone?
Yes. On the climate data it's one of the best months, scoring 97/100. Expect highs of 72°F (22°C) and 1.5 in (37 mm) of rain. Our Grand Teton, Jackson & Yellowstone route recommends Mid-Dec – Mar, so July is outside its suggested window.
How hot is Yellowstone in July?
Average highs are 72°F (22°C) and average lows 46°F (8°C), making it the warmest month by daytime highs.
Does it rain a lot in Yellowstone in July?
Not much: about 1.5 in (37 mm) of rain falls across July on average, the driest month of the year. The annual total is about 32.8 in (834 mm).
What should I pack for Yellowstone in July?
Bring light, breathable clothes (72°F afternoons), sunscreen, sunglasses and a hat (strong sun this month), a warm layer for evenings (lows near 46°F) and comfortable walking shoes (most picks involve some walking).
More on Yellowstone
Planning Yellowstone in July?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.