| Point Forecast: Helena MT 46.58N 112.01W (Elev. 4111 ft) |
Last Update: 1:57 pm MDT Jul 12, 2026 |
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| Date | 07/12 | 07/13 | ||||||||||||||||||||||
| Hour (MDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°F) | 82 | 80 | 78 | 75 | 72 | 69 | 68 | 68 | 66 | 68 | 70 | 72 | 78 | 82 | 85 | 89 | 91 | 94 | 94 | 94 | 95 | 94 | 93 | 87 |
| Dewpoint (°F) | 45 | 45 | 44 | 46 | 45 | 44 | 45 | 45 | 43 | 45 | 46 | 45 | 48 | 48 | 47 | 48 | 47 | 48 | 48 | 48 | 49 | 49 | 51 | 51 |
| Heat Index (°F) | 80 | 79 | 78 | 75 | 78 | 81 | 83 | 86 | 88 | 91 | 91 | 91 | 92 | 91 | 90 | 85 | ||||||||
| Surface Wind (mph) | 9 | 7 | 6 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 5 |
| Wind Dir | W | W | WSW | WSW | WSW | WSW | SW | SW | S | WSW | NW | N | NE | NE | NE | NE | N | N | N | N | NNW | NNW | NNW | WSW |
| Gust | 18 | |||||||||||||||||||||||
| Sky Cover (%) | 83 | 81 | 61 | 31 | 39 | 26 | 39 | 25 | 38 | 56 | 35 | 32 | 44 | 40 | 23 | 17 | 32 | 38 | 27 | 36 | 65 | 65 | 65 | 89 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 22 | 25 | 24 | 24 |
| Relative Humidity (%) | 27 | 29 | 30 | 36 | 38 | 41 | 43 | 43 | 44 | 44 | 42 | 38 | 35 | 31 | 27 | 24 | 22 | 21 | 21 | 21 | 21 | 22 | 24 | 29 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | SChc | SChc |
| Date | 07/14 | |||||||||||||||||||||||
| Hour (MDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°F) | 82 | 80 | 78 | 75 | 74 | 71 | 70 | 69 | 68 | 70 | 71 | 73 | 75 | 79 | 82 | 85 | 87 | 89 | 90 | 90 | 89 | 88 | 86 | 83 |
| Dewpoint (°F) | 52 | 51 | 51 | 52 | 52 | 50 | 50 | 50 | 49 | 51 | 50 | 50 | 50 | 53 | 53 | 54 | 53 | 53 | 53 | 53 | 53 | 54 | 55 | 56 |
| Heat Index (°F) | 81 | 80 | 78 | 75 | 75 | 79 | 81 | 83 | 85 | 87 | 88 | 88 | 87 | 86 | 85 | 82 | ||||||||
| Surface Wind (mph) | 5 | 5 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 7 | 7 | 7 | 9 | 9 | 9 | 8 |
| Wind Dir | WSW | WSW | W | W | W | W | W | W | W | W | W | NNW | NNW | NNW | N | N | N | N | N | N | N | N | N | NW |
| Gust | 18 | 18 | 18 | |||||||||||||||||||||
| Sky Cover (%) | 89 | 89 | 73 | 73 | 73 | 46 | 46 | 46 | 56 | 56 | 56 | 57 | 57 | 57 | 59 | 59 | 59 | 72 | 72 | 72 | 87 | 87 | 87 | 87 |
| Precipitation Potential (%) | 23 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 19 | 19 | 19 | 19 | 19 | 19 | 67 | 67 | 67 | 67 |
| Relative Humidity (%) | 35 | 37 | 39 | 45 | 46 | 48 | 49 | 50 | 50 | 50 | 48 | 45 | 42 | 40 | 37 | 34 | 31 | 29 | 28 | 28 | 29 | 32 | 35 | 40 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Lkly | Lkly | Lkly | Lkly |
| Thunder | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | SChc |
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