| Point Forecast: Helena MT 46.58N 112.01W (Elev. 4111 ft) |
Last Update: 4:23 am MDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (MDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 56 | 55 | 53 | 54 | 54 | 55 | 55 | 52 | 54 | 54 | 54 | 57 | 55 | 57 | 55 | 55 | 53 | 51 | 52 | 52 | 51 | 50 | 51 | 49 |
| Dewpoint (°F) | 51 | 51 | 50 | 51 | 50 | 53 | 53 | 51 | 52 | 51 | 50 | 52 | 49 | 47 | 46 | 46 | 44 | 45 | 46 | 46 | 46 | 46 | 46 | 45 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 15 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 15 | 10 | 10 | 9 | 7 | 6 | 5 |
| Wind Dir | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | NNW | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NW | NW | NNW | NW |
| Gust | 32 | 31 | 32 | 31 | 29 | 28 | 26 | 26 | 26 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 29 | 22 | 18 | ||||
| Sky Cover (%) | 95 | 87 | 95 | 91 | 91 | 88 | 91 | 92 | 94 | 91 | 88 | 88 | 90 | 88 | 93 | 90 | 93 | 93 | 92 | 90 | 92 | 89 | 88 | 87 |
| Precipitation Potential (%) | 50 | 40 | 52 | 55 | 58 | 64 | 77 | 86 | 91 | 59 | 53 | 48 | 52 | 73 | 61 | 64 | 50 | 53 | 48 | 25 | 24 | 22 | 20 | 18 |
| Relative Humidity (%) | 85 | 85 | 89 | 89 | 89 | 93 | 94 | 94 | 93 | 89 | 84 | 82 | 81 | 71 | 72 | 71 | 71 | 80 | 80 | 78 | 82 | 84 | 82 | 86 |
| Rain | Chc | Chc | Chc | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Lkly | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (MDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 48 | 48 | 46 | 48 | 50 | 54 | 56 | 59 | 63 | 67 | 70 | 73 | 74 | 75 | 73 | 71 | 68 | 65 | 62 | 59 | 57 | 55 | 53 | 51 |
| Dewpoint (°F) | 44 | 44 | 43 | 44 | 46 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 45 | 44 | 44 |
| Heat Index (°F) | 75 | |||||||||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 2 | 1 | 2 | 2 | 2 | 5 | 5 | 5 | 7 | 7 | 7 | 8 | 8 | 8 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | WNW | NW | WNW | NW | NNW | N | ENE | E | E | E | E | E | E | E | E | E | E | E | E | SSE | SSE | SSE | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 88 | 79 | 78 | 74 | 68 | 48 | 50 | 52 | 52 | 52 | 22 | 22 | 22 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 7 | 7 |
| Precipitation Potential (%) | 17 | 11 | 11 | 11 | 11 | 11 | 11 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 88 | 88 | 88 | 88 | 84 | 80 | 73 | 64 | 56 | 49 | 44 | 39 | 37 | 36 | 37 | 40 | 45 | 50 | 56 | 62 | 66 | 70 | 73 | 76 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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