| Point Forecast: Helena MT 46.58N 112.01W (Elev. 4111 ft) |
Last Update: 9:57 pm MDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (MDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 77 | 76 | 75 | 72 | 69 | 66 | 65 | 64 | 65 | 68 | 73 | 79 | 83 | 85 | 88 | 91 | 91 | 92 | 93 | 91 | 89 | 86 | 79 | 72 |
| Dewpoint (°F) | 47 | 46 | 49 | 49 | 47 | 47 | 47 | 47 | 48 | 49 | 49 | 49 | 49 | 46 | 47 | 48 | 45 | 45 | 46 | 45 | 47 | 48 | 49 | 51 |
| Heat Index (°F) | 77 | 76 | 75 | 79 | 81 | 82 | 85 | 87 | 88 | 89 | 89 | 88 | 86 | 83 | 79 | |||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 5 | 6 | 6 | 7 | 7 | 8 | 10 | 10 | 11 | 13 | 14 | 14 | 14 | 14 | 15 | 16 | 16 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SW | W | W | W | W | W | W | W | WNW | WNW | WNW | NW | N | N | N | N |
| Gust | 18 | 20 | 22 | 24 | 25 | 25 | 25 | 26 | 26 | 29 | 31 | 32 | ||||||||||||
| Sky Cover (%) | 14 | 13 | 21 | 13 | 9 | 6 | 10 | 2 | 9 | 5 | 2 | 0 | 4 | 4 | 3 | 9 | 3 | 5 | 28 | 64 | 64 | 64 | 64 | 64 |
| Precipitation Potential (%) | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 4 | 5 | 8 | 8 | 42 | 42 | 42 | 42 | 42 |
| Relative Humidity (%) | 34 | 35 | 40 | 44 | 45 | 50 | 53 | 54 | 55 | 50 | 42 | 35 | 31 | 26 | 24 | 23 | 20 | 20 | 20 | 20 | 23 | 27 | 35 | 48 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | SChc | SChc |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (MDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 68 | 65 | 63 | 61 | 60 | 59 | 57 | 56 | 55 | 55 | 55 | 55 | 56 | 57 | 58 | 59 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 55 |
| Dewpoint (°F) | 54 | 53 | 53 | 53 | 52 | 51 | 51 | 50 | 50 | 50 | 51 | 51 | 52 | 52 | 52 | 52 | 51 | 50 | 49 | 47 | 46 | 46 | 45 | 45 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 11 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Wind Dir | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Gust | 32 | 30 | 30 | 30 | 26 | 26 | 26 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 28 | 28 | 28 | 26 | 26 | 26 | 25 | 25 |
| Sky Cover (%) | 66 | 76 | 76 | 76 | 89 | 89 | 89 | 87 | 87 | 87 | 86 | 86 | 86 | 98 | 98 | 98 | 98 | 98 | 98 | 87 | 87 | 87 | 92 | 92 |
| Precipitation Potential (%) | 42 | 52 | 52 | 52 | 52 | 52 | 52 | 56 | 56 | 56 | 56 | 56 | 56 | 80 | 80 | 80 | 80 | 80 | 80 | 64 | 64 | 64 | 64 | 64 |
| Relative Humidity (%) | 60 | 66 | 70 | 73 | 75 | 77 | 78 | 80 | 82 | 84 | 86 | 87 | 86 | 85 | 82 | 79 | 75 | 72 | 70 | 68 | 67 | 66 | 67 | 69 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Lkly | Lkly | Lkly |
| Thunder | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | SChc | SChc |
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