Currently: 50 °F. Passing clouds. (Weather station: West Yellowstone Airport, USA). See more current weatherSeptember 2018 Weather in Yellowstone National Park — Graph
High & Low Weather Summary for September 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 81 °F (Sep 6, 3:10 pm) | 100% (Sep 2, 4:55 am) | 30.40 "Hg (Sep 2, 4:55 am) |
| Low | 14 °F (Sep 26, 7:15 am) | 7% (Sep 17, 5:55 pm) | 29.89 "Hg (Sep 15, 7:10 pm) |
| Average | 48 °F | 49% | 30.12 "Hg |
| * Reported Sep 1 12:15 am — Sep 30 11:50 pm, Yellowstone National Park. Weather by CustomWeather, © 2024 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Yellowstone National Park Weather History for September 1, 2018
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:15 am Sat, Sep 1 | | 50 °F | Passing clouds. | No wind | ↑ | 58% | 30.09 "Hg | 10 mi |
| 12:35 am | | 48 °F | Passing clouds. | 5 mph | ↑ | 58% | 30.09 "Hg | 10 mi |
| 12:55 am | | 46 °F | Passing clouds. | No wind | ↑ | 62% | 30.10 "Hg | 10 mi |
| 1:15 am |  | 45 °F | Clear. | 3 mph | ↑ | 66% | 30.10 "Hg | 10 mi |
| 1:30 am | | 43 °F | Clear. | 5 mph | ↑ | 71% | 30.10 "Hg | 10 mi |
| 1:55 am | | 43 °F | Clear. | 5 mph | ↑ | 71% | 30.10 "Hg | 10 mi |
| 2:15 am | | 45 °F | Clear. | 9 mph | ↑ | 66% | 30.10 "Hg | 10 mi |
| 2:35 am | | 46 °F | Clear. | 6 mph | ↑ | 62% | 30.09 "Hg | 10 mi |
| 2:55 am | | 46 °F | Clear. | No wind | ↑ | 62% | 30.09 "Hg | 10 mi |
| 3:15 am | | 46 °F | Clear. | 5 mph | ↑ | 62% | 30.09 "Hg | 10 mi |
| 3:35 am | | 43 °F | Clear. | No wind | ↑ | 71% | 30.09 "Hg | 10 mi |
| 3:55 am | | 41 °F | Clear. | No wind | ↑ | 76% | 30.09 "Hg | 10 mi |
| 4:15 am | | 39 °F | Clear. | No wind | ↑ | 81% | 30.09 "Hg | 10 mi |
| 4:30 am | | 37 °F | Clear. | No wind | ↑ | 81% | 30.09 "Hg | 10 mi |
| 4:50 am | | 36 °F | Clear. | No wind | ↑ | 87% | 30.10 "Hg | 10 mi |
| 5:15 am | | 34 °F | Clear. | No wind | ↑ | 93% | 30.10 "Hg | 10 mi |
| 5:35 am | | 32 °F | Clear. | No wind | ↑ | 93% | 30.10 "Hg | 10 mi |
| 5:55 am | | 32 °F | Clear. | No wind | ↑ | 93% | 30.10 "Hg | 10 mi |
| 6:15 am | | 32 °F | Clear. | No wind | ↑ | 93% | 30.10 "Hg | 10 mi |
| 6:35 am | | 32 °F | Clear. | No wind | ↑ | 93% | 30.10 "Hg | 10 mi |
| 6:50 am |  | 32 °F | Sunny. | No wind | ↑ | 93% | 30.10 "Hg | 10 mi |
| 7:35 am | | 34 °F | Sunny. | No wind | ↑ | 93% | 30.11 "Hg | 10 mi |
| 7:55 am | | 37 °F | Sunny. | No wind | ↑ | 87% | 30.11 "Hg | 10 mi |
| 8:15 am | | 41 °F | Sunny. | No wind | ↑ | 76% | 30.11 "Hg | 10 mi |
| 8:35 am | | 43 °F | Sunny. | No wind | ↑ | 71% | 30.12 "Hg | 10 mi |
| 8:50 am | | 46 °F | Sunny. | No wind | ↑ | 66% | 30.12 "Hg | 10 mi |
| 9:10 am | | 52 °F | Sunny. | No wind | ↑ | 54% | 30.12 "Hg | 10 mi |
| 9:35 am | | 54 °F | Sunny. | No wind | ↑ | 47% | 30.12 "Hg | 10 mi |
| 9:55 am | | 55 °F | Sunny. | 12 mph | ↑ | 41% | 30.11 "Hg | 10 mi |
| 10:15 am | | 57 °F | Sunny. | 16 mph | ↑ | 39% | 30.11 "Hg | 10 mi |
| 10:35 am | | 57 °F | Sunny. | 15 mph | ↑ | 39% | 30.11 "Hg | 10 mi |
| 10:50 am | | 59 °F | Sunny. | 15 mph | ↑ | 36% | 30.11 "Hg | 10 mi |
| 11:10 am | | 59 °F | Sunny. | 14 mph | ↑ | 39% | 30.11 "Hg | 10 mi |
| 11:35 am | | 61 °F | Sunny. | 18 mph | ↑ | 34% | 30.11 "Hg | 10 mi |
| 11:55 am | | 61 °F | Sunny. | 17 mph | ↑ | 34% | 30.11 "Hg | 10 mi |
| 12:15 pm | | 63 °F | Sunny. | 15 mph | ↑ | 32% | 30.10 "Hg | 10 mi |
| 12:35 pm | | 63 °F | Sunny. | 14 mph | ↑ | 32% | 30.09 "Hg | 10 mi |
| 12:50 pm | | 64 °F | Sunny. | 13 mph | ↑ | 28% | 30.10 "Hg | 10 mi |
| 1:10 pm | | 64 °F | Sunny. | 14 mph | ↑ | 30% | 30.09 "Hg | 10 mi |
| 1:35 pm | | 66 °F | Sunny. | 17 mph | ↑ | 28% | 30.09 "Hg | 10 mi |
| 1:55 pm | | 66 °F | Sunny. | 13 mph | ↑ | 28% | 30.09 "Hg | 10 mi |
| 2:15 pm | | 66 °F | Sunny. | 15 mph | ↑ | 28% | 30.09 "Hg | 10 mi |
| 2:35 pm | | 66 °F | Sunny. | 15 mph | ↑ | 28% | 30.08 "Hg | 10 mi |
| 3:15 pm | | 66 °F | Sunny. | 16 mph | ↑ | 26% | 30.07 "Hg | 10 mi |
| 3:35 pm | | 68 °F | Sunny. | 16 mph | ↑ | 24% | 30.07 "Hg | 10 mi |
| 3:55 pm | | 68 °F | Sunny. | 15 mph | ↑ | 24% | 30.07 "Hg | 10 mi |
| 4:15 pm | | 68 °F | Sunny. | 14 mph | ↑ | 26% | 30.07 "Hg | 10 mi |
| 4:30 pm | | 68 °F | Sunny. | 16 mph | ↑ | 26% | 30.06 "Hg | 10 mi |
| 4:50 pm | | 68 °F | Sunny. | 17 mph | ↑ | 26% | 30.06 "Hg | 10 mi |
| 5:15 pm | | 68 °F | Sunny. | 20 mph | ↑ | 26% | 30.05 "Hg | 10 mi |
| 5:35 pm | | 68 °F | Sunny. | 15 mph | ↑ | 26% | 30.06 "Hg | 10 mi |
| 5:55 pm | | 68 °F | Sunny. | 16 mph | ↑ | 26% | 30.05 "Hg | 10 mi |
| 6:15 pm |  | 66 °F | Passing clouds. | 13 mph | ↑ | 28% | 30.05 "Hg | 10 mi |
| 6:35 pm | | 66 °F | Passing clouds. | 17 mph | ↑ | 28% | 30.05 "Hg | 10 mi |
| 6:55 pm | | 66 °F | Scattered clouds. | 15 mph | ↑ | 28% | 30.06 "Hg | 10 mi |
| 7:10 pm | | 64 °F | Passing clouds. | 13 mph | ↑ | 30% | 30.06 "Hg | 10 mi |
| 7:35 pm | | 63 °F | Sunny. | 12 mph | ↑ | 32% | 30.06 "Hg | 10 mi |
| 7:55 pm | | 61 °F | Scattered clouds. | 6 mph | ↑ | 34% | 30.07 "Hg | 10 mi |
| 8:15 pm | | 59 °F | Passing clouds. | No wind | ↑ | 39% | 30.08 "Hg | 10 mi |
| 8:30 pm | | 57 °F | Passing clouds. | 5 mph | ↑ | 41% | 30.08 "Hg | 10 mi |
| 8:50 pm | | 55 °F | Passing clouds. | No wind | ↑ | 44% | 30.09 "Hg | 10 mi |
| 9:15 pm | | 55 °F | Passing clouds. | 8 mph | ↑ | 41% | 30.11 "Hg | 10 mi |
| 9:35 pm | | 55 °F | Passing clouds. | 5 mph | ↑ | 41% | 30.11 "Hg | 10 mi |
| 9:55 pm | | 54 °F | Passing clouds. | No wind | ↑ | 47% | 30.12 "Hg | 10 mi |
| 10:15 pm | | 52 °F | Clear. | 5 mph | ↑ | 50% | 30.12 "Hg | 10 mi |
| 10:35 pm | | 46 °F | Clear. | 5 mph | ↑ | 62% | 30.12 "Hg | 10 mi |
| 10:50 pm | | 48 °F | Clear. | No wind | ↑ | 58% | 30.12 "Hg | 10 mi |
| 11:10 pm | | 45 °F | Clear. | No wind | ↑ | 66% | 30.13 "Hg | 10 mi |
| 11:35 pm | | 43 °F | Clear. | No wind | ↑ | 71% | 30.13 "Hg | 10 mi |
| 11:55 pm | | 41 °F | Clear. | No wind | ↑ | 70% | 30.13 "Hg | 10 mi |
| Weather by CustomWeather, © 2024 | ||||||||