| Point Forecast: 2 Miles N East Helena MT 46.61N 111.93W (Elev. 3819 ft) |
Last Update: 2:30 pm MST Jan 18, 2025 |
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| Date | 01/18 | 01/19 | ||||||||||||||||||||||
| Hour (MST) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 2 | 0 | 0 | -1 | -1 | -2 | -4 | -2 | 0 | 0 | 2 | 3 | 4 | 7 | 11 | 13 | 15 | 15 | 17 | 15 | 12 | 9 | 4 | 3 |
| Dewpoint (°F) | -4 | -5 | -5 | -5 | -6 | -6 | -8 | -6 | -5 | -3 | -1 | -1 | 1 | 3 | 5 | 6 | 6 | 6 | 7 | 5 | 3 | 2 | -3 | -4 |
| Wind Chill (°F) | 2 | 0 | 0 | -1 | -1 | -2 | -4 | -2 | 0 | 0 | 2 | 3 | 4 | 7 | 11 | 5 | 5 | 4 | 5 | 2 | -2 | -4 | -8 | -8 |
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 2 | 5 | 7 | 9 | 10 | 10 | 10 | 9 | 7 | 6 |
| Wind Dir | SSE | WSW | W | SW | SW | SW | W | WSW | W | W | N | W | W | WNW | WNW | WNW | NW | NNW | NNW | NNW | NW | NNW | NNW | NNW |
| Gust | 18 | 21 | 20 | |||||||||||||||||||||
| Sky Cover (%) | 62 | 65 | 68 | 62 | 67 | 62 | 66 | 81 | 83 | 89 | 91 | 91 | 94 | 92 | 91 | 89 | 89 | 88 | 81 | 68 | 61 | 50 | 40 | 33 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 22 | 25 | 25 | 30 | 30 | 25 | 30 | 16 | 14 | 5 | 3 | 0 | 2 | 2 | 2 | 2 |
| Relative Humidity (%) | 77 | 78 | 80 | 81 | 81 | 80 | 82 | 81 | 81 | 85 | 84 | 85 | 86 | 84 | 78 | 74 | 68 | 66 | 65 | 65 | 67 | 71 | 73 | 71 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 01/20 | |||||||||||||||||||||||
| Hour (MST) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 1 | -1 | -2 | -3 | -5 | -6 | -8 | -9 | -11 | -12 | -13 | -13 | -9 | -4 | 1 | 6 | 9 | 11 | 11 | 10 | 9 | 7 | 5 | 4 |
| Dewpoint (°F) | -6 | -7 | -9 | -10 | -11 | -12 | -14 | -16 | -17 | -19 | -19 | -19 | -16 | -12 | -9 | -7 | -6 | -5 | -4 | -4 | -4 | -4 | -5 | -6 |
| Wind Chill (°F) | -9 | -9 | -2 | -3 | -5 | -6 | -8 | -9 | -11 | -12 | -13 | -13 | -9 | -4 | 1 | 6 | 9 | 1 | 2 | 1 | -1 | -3 | -5 | -8 |
| Surface Wind (mph) | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
| Wind Dir | NNW | NNW | NW | NW | NW | W | W | W | SW | SW | SW | SSW | SSW | SSW | S | S | S | SSE | SSE | SSE | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 40 | 46 | 51 | 51 | 51 | 33 | 33 | 33 | 22 | 22 | 22 | 18 | 18 | 18 | 14 | 14 | 14 | 14 | 14 | 14 | 22 | 22 | 22 | 43 |
| Precipitation Potential (%) | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 74 | 73 | 70 | 65 | 60 | 55 | 50 | 48 | 50 | 53 | 57 | 60 | 62 | 63 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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