In July, typical afternoon highs at Grand Prismatic Spring run around 75°F (warm). Mid-afternoon sun stands about 60° high, and the sun is up from 5:52 AM to 9:05 PM. Shade depends on terrain and tree cover; open viewpoints are fully exposed.
See live sun & real shadows here →| January | 24°F |
| February | 28°F |
| March | 38°F |
| April | 45°F |
| May | 56°F |
| June | 67°F |
| July | 75°F |
| August | 73°F |
| September | 67°F |
| October | 48°F |
| November | 39°F |
| December | 32°F |
Shade depends on terrain and tree cover; open viewpoints are fully exposed. See real building shadows over satellite imagery for any time of day: https://isthereshade.com/?anywhere&at=44.525,-110.8381
Around 9:05 PM local time in mid-July (it shifts through the year). Sunrise is about 5:52 AM.
Grand Prismatic Spring — Yellowstone, WY. Data: astronomical sun position; climate normals from historical weather; live forecast on the interactive view.