| Point Forecast: Helena MT 46.59N 111.98W (Elev. 3996 ft) |
Last Update: 10:25 am MDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (MDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 90 | 92 | 92 | 93 | 93 | 91 | 89 | 83 | 78 | 76 | 74 | 72 | 70 | 67 | 65 | 63 | 62 | 65 | 68 | 73 | 79 | 83 | 86 | 89 |
| Dewpoint (°F) | 46 | 43 | 42 | 41 | 39 | 42 | 45 | 44 | 45 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 46 | 49 | 49 | 49 | 49 | 49 | 48 | 47 |
| Heat Index (°F) | 86 | 88 | 88 | 89 | 88 | 87 | 86 | 81 | 78 | 76 | 79 | 82 | 84 | 86 | ||||||||||
| Surface Wind (mph) | 10 | 11 | 11 | 11 | 13 | 11 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 5 | 6 | 5 | 3 | 5 | 5 | 7 | 8 | 13 | 14 | 14 |
| Wind Dir | WNW | WNW | WNW | WNW | WNW | WNW | NW | WNW | W | WSW | WSW | WSW | WSW | SW | WSW | WSW | WSW | SW | WSW | WNW | W | W | W | W |
| Gust | 21 | 22 | 23 | 23 | 22 | 21 | 21 | 23 | 23 | |||||||||||||||
| Sky Cover (%) | 12 | 24 | 11 | 7 | 4 | 5 | 6 | 6 | 13 | 7 | 9 | 24 | 14 | 9 | 10 | 12 | 1 | 10 | 5 | 2 | 3 | 5 | 13 | 13 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 4 | 4 | 3 | 5 | 5 | 2 | 3 | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 11 |
| Relative Humidity (%) | 22 | 18 | 17 | 17 | 15 | 18 | 22 | 25 | 32 | 35 | 37 | 41 | 44 | 49 | 53 | 56 | 56 | 56 | 50 | 43 | 35 | 30 | 26 | 23 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (MDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 91 | 91 | 92 | 91 | 88 | 85 | 80 | 75 | 71 | 66 | 63 | 61 | 59 | 58 | 57 | 55 | 54 | 53 | 53 | 53 | 53 | 55 | 56 | 57 |
| Dewpoint (°F) | 46 | 46 | 45 | 45 | 46 | 47 | 49 | 50 | 51 | 52 | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 49 | 49 |
| Heat Index (°F) | 87 | 88 | 88 | 87 | 85 | 82 | 79 | 75 | ||||||||||||||||
| Surface Wind (mph) | 14 | 17 | 17 | 17 | 18 | 18 | 18 | 20 | 20 | 20 | 17 | 17 | 17 | 15 | 15 | 15 | 14 | 14 | 14 | 10 | 10 | 10 | 11 | 11 |
| Wind Dir | W | WNW | WNW | WNW | NW | NW | NW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | NNW | NNW | NNW | N | N | N | N | N |
| Gust | 23 | 28 | 28 | 28 | 30 | 30 | 30 | 34 | 34 | 34 | 31 | 31 | 31 | 28 | 28 | 28 | 28 | 28 | 28 | 21 | 21 | 21 | 23 | 23 |
| Sky Cover (%) | 13 | 20 | 20 | 20 | 63 | 63 | 63 | 63 | 63 | 63 | 69 | 69 | 69 | 83 | 83 | 83 | 81 | 81 | 81 | 83 | 83 | 83 | 82 | 82 |
| Precipitation Potential (%) | 11 | 11 | 11 | 11 | 44 | 44 | 44 | 44 | 44 | 44 | 54 | 54 | 54 | 54 | 54 | 54 | 50 | 50 | 50 | 50 | 50 | 50 | 62 | 62 |
| Relative Humidity (%) | 22 | 21 | 20 | 21 | 23 | 27 | 33 | 41 | 50 | 60 | 68 | 74 | 78 | 81 | 84 | 87 | 88 | 90 | 91 | 91 | 88 | 83 | 78 | 74 |
| Rain | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly |
| Thunder | -- | -- | -- | -- | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc |
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