| Point Forecast: West Yellowstone MT 44.67N 111.09W (Elev. 6686 ft) |
Last Update: 4:12 pm MDT Aug 11, 2026 |
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| Date | 08/11 | 08/12 | ||||||||||||||||||||||
| Hour (MDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 70 | 66 | 63 | 60 | 57 | 54 | 52 | 49 | 48 | 47 | 46 | 51 | 57 | 64 | 70 | 75 | 78 | 78 | 80 | 78 | 77 | 75 | 72 | 67 |
| Dewpoint (°F) | 32 | 33 | 34 | 35 | 35 | 35 | 34 | 34 | 34 | 35 | 34 | 37 | 37 | 38 | 39 | 39 | 37 | 35 | 35 | 35 | 35 | 38 | 39 | 41 |
| Heat Index (°F) | 75 | 78 | 78 | 79 | 78 | 77 | 75 | |||||||||||||||||
| Surface Wind (mph) | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 5 | 6 | 8 | 9 | 10 | 10 | 10 | 10 | 9 | 8 | 6 |
| Wind Dir | W | W | WNW | NW | W | SSW | S | S | S | S | SSW | SW | WSW | WSW | SW | SW | SW | SW | SW | SW | S | S | SSE | ESE |
| Gust | 18 | 20 | 18 | |||||||||||||||||||||
| Sky Cover (%) | 86 | 87 | 79 | 82 | 91 | 86 | 67 | 84 | 95 | 92 | 85 | 67 | 67 | 67 | 77 | 65 | 39 | 40 | 46 | 57 | 61 | 79 | 79 | 79 |
| Precipitation Potential (%) | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 9 | 7 | 3 | 6 | 1 | 2 | 4 | 7 | 28 | 32 | 27 | 26 | 12 |
| Relative Humidity (%) | 24 | 29 | 34 | 39 | 43 | 48 | 51 | 55 | 59 | 63 | 63 | 58 | 47 | 38 | 32 | 27 | 23 | 21 | 20 | 21 | 22 | 26 | 30 | 38 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | -- |
| Date | 08/13 | |||||||||||||||||||||||
| Hour (MDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 63 | 59 | 56 | 54 | 51 | 48 | 47 | 45 | 44 | 43 | 41 | 45 | 51 | 57 | 61 | 65 | 67 | 67 | 67 | 66 | 64 | 62 | 60 | 58 |
| Dewpoint (°F) | 45 | 46 | 46 | 47 | 47 | 47 | 47 | 45 | 44 | 43 | 41 | 42 | 44 | 45 | 45 | 45 | 45 | 44 | 46 | 46 | 46 | 47 | 48 | 50 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 5 | 5 | 5 | 5 | 5 | 5 | 2 | 2 | 2 |
| Wind Dir | E | E | NE | NE | NNE | NNE | N | NNE | ENE | E | E | E | N | N | N | SSW | SSW | SSW | S | S | S | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 70 | 70 | 70 | 81 | 81 | 81 | 85 | 85 | 85 | 81 | 81 | 81 | 76 | 76 | 76 | 81 | 81 | 81 | 81 | 81 | 81 | 91 | 91 | 91 |
| Precipitation Potential (%) | 11 | 5 | 4 | 4 | 4 | 3 | 3 | 6 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 71 | 71 | 71 | 71 | 71 | 71 | 86 | 86 | 86 |
| Relative Humidity (%) | 51 | 62 | 68 | 78 | 87 | 95 | 100 | 100 | 100 | 100 | 100 | 90 | 76 | 65 | 55 | 48 | 45 | 44 | 46 | 48 | 51 | 57 | 65 | 75 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
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