| Point Forecast: Helena MT 46.59N 111.98W (Elev. 3996 ft) |
Last Update: 2:29 pm MDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (MDT) | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 |
| Temperature (°F) | 92 | 93 | 95 | 95 | 92 | 90 | 84 | 79 | 77 | 75 | 73 | 70 | 67 | 64 | 63 | 62 | 64 | 68 | 72 | 79 | 83 | 86 | 88 | 91 |
| Dewpoint (°F) | 43 | 44 | 42 | 42 | 44 | 47 | 45 | 47 | 47 | 46 | 47 | 47 | 47 | 46 | 47 | 46 | 49 | 49 | 49 | 51 | 49 | 47 | 47 | 47 |
| Heat Index (°F) | 89 | 89 | 90 | 90 | 88 | 87 | 82 | 79 | 77 | 75 | 79 | 81 | 83 | 85 | 87 | |||||||||
| Surface Wind (mph) | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 9 | 10 | 11 | 13 |
| Wind Dir | WNW | NW | NW | NW | WNW | NW | WNW | W | W | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SSW | W | W | W | W | W | W |
| Gust | 20 | 21 | 21 | 21 | 18 | 18 | 20 | 22 | 24 | |||||||||||||||
| Sky Cover (%) | 3 | 11 | 7 | 4 | 5 | 6 | 6 | 13 | 7 | 19 | 20 | 7 | 4 | 6 | 12 | 2 | 9 | 5 | 1 | 0 | 4 | 4 | 4 | 9 |
| Precipitation Potential (%) | 0 | 0 | 0 | 4 | 4 | 3 | 5 | 5 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 3 | 4 |
| Relative Humidity (%) | 18 | 18 | 17 | 16 | 19 | 22 | 26 | 32 | 35 | 36 | 40 | 45 | 48 | 52 | 54 | 57 | 57 | 50 | 44 | 37 | 31 | 26 | 24 | 22 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (MDT) | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 |
| Temperature (°F) | 91 | 92 | 93 | 91 | 89 | 86 | 78 | 71 | 67 | 64 | 62 | 61 | 60 | 58 | 57 | 56 | 55 | 55 | 55 | 55 | 56 | 57 | 58 | 59 |
| Dewpoint (°F) | 46 | 47 | 47 | 46 | 48 | 49 | 49 | 51 | 53 | 53 | 52 | 52 | 52 | 51 | 51 | 50 | 50 | 50 | 50 | 51 | 52 | 52 | 52 | 52 |
| Heat Index (°F) | 88 | 89 | 89 | 88 | 86 | 83 | 78 | |||||||||||||||||
| Surface Wind (mph) | 14 | 14 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 15 | 15 | 15 | 13 | 13 | 13 | 11 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 13 |
| Wind Dir | WNW | WNW | WNW | NW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | N | N | N |
| Gust | 25 | 26 | 26 | 26 | 28 | 30 | 31 | 32 | 32 | 29 | 29 | 29 | 24 | 24 | 24 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 24 |
| Sky Cover (%) | 4 | 7 | 29 | 65 | 65 | 65 | 65 | 65 | 65 | 76 | 76 | 76 | 88 | 88 | 88 | 87 | 87 | 87 | 86 | 86 | 86 | 99 | 99 | 99 |
| Precipitation Potential (%) | 5 | 8 | 8 | 42 | 42 | 42 | 42 | 42 | 42 | 53 | 53 | 53 | 53 | 53 | 53 | 56 | 56 | 56 | 56 | 56 | 56 | 79 | 79 | 79 |
| Relative Humidity (%) | 21 | 21 | 21 | 21 | 24 | 28 | 36 | 49 | 61 | 67 | 71 | 73 | 74 | 77 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 80 | 77 |
| Rain | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl |
| Thunder | -- | -- | -- | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc |
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