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| Point Forecast: 9 Miles SW North Spearfish SD 44.41N 104.02W (Elev. 5600 ft) |
Last Update: 10:52 am MDT Aug 6, 2020 |
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| Date | 08/06 | 08/07 | ||||||||||||||||||||||
| Hour (MDT) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| Temperature (°F) | 72 | 74 | 76 | 78 | 80 | 80 | 78 | 77 | 75 | 71 | 69 | 68 | 66 | 65 | 65 | 65 | 65 | 65 | 65 | 63 | 64 | 68 | 73 | 75 |
| Dewpoint (°F) | 58 | 59 | 58 | 57 | 56 | 56 | 56 | 56 | 56 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 51 | 50 | 49 | 49 | 49 | 50 | 51 | 52 |
| Heat Index (°F) | 76 | 78 | 80 | 80 | 78 | 77 | 75 | 75 | ||||||||||||||||
| Surface Wind (mph) | 6 | 8 | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 13 | 10 | 10 | 9 | 8 | 7 | 6 | 6 |
| Wind Dir | E | SE | SE | SE | SE | SE | SE | SE | S | S | S | S | S | S | S | S | S | S | S | S | SW | W | W | W |
| Gust | 16 | 16 | 16 | 16 | 16 | 16 | ||||||||||||||||||
| Sky Cover (%) | 11 | 18 | 23 | 28 | 33 | 37 | 38 | 39 | 47 | 54 | 62 | 52 | 42 | 32 | 24 | 16 | 8 | 6 | 5 | 3 | 4 | 4 | 5 | 11 |
| Precipitation Potential (%) | 1 | 3 | 5 | 7 | 8 | 15 | 21 | 27 | 35 | 35 | 30 | 20 | 10 | 6 | 4 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 2 |
| Relative Humidity (%) | 61 | 59 | 55 | 50 | 44 | 44 | 47 | 48 | 52 | 57 | 61 | 61 | 65 | 65 | 65 | 63 | 60 | 58 | 56 | 60 | 58 | 52 | 46 | 45 |
| Rain | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/08 | |||||||||||||||||||||||
| Hour (MDT) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| Temperature (°F) | 77 | 79 | 80 | 80 | 80 | 79 | 78 | 76 | 73 | 71 | 69 | 66 | 64 | 62 | 61 | 61 | 60 | 59 | 58 | 58 | 60 | 64 | 67 | 70 |
| Dewpoint (°F) | 52 | 53 | 52 | 52 | 51 | 52 | 52 | 52 | 52 | 52 | 51 | 50 | 49 | 48 | 47 | 47 | 46 | 46 | 46 | 46 | 46 | 47 | 49 | 50 |
| Heat Index (°F) | 77 | 79 | 80 | 80 | 80 | 79 | 78 | 76 | ||||||||||||||||
| Surface Wind (mph) | 7 | 8 | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | NW | N | N | N | N | N | N | N | N | N | N | NE | NE | NE | NE | E | E | E | E | SE | SE | SE | SE | SE |
| Gust | 15 | 15 | 16 | 16 | 17 | 16 | ||||||||||||||||||
| Sky Cover (%) | 18 | 24 | 25 | 25 | 26 | 29 | 32 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 25 | 20 | 17 |
| Precipitation Potential (%) | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 15 | 15 | 15 | 15 | 15 | 15 | 12 | 12 | 12 | 12 | 12 | 12 | 8 | 8 | 8 | 8 | 8 |
| Relative Humidity (%) | 42 | 41 | 38 | 38 | 36 | 39 | 40 | 43 | 48 | 51 | 53 | 56 | 58 | 60 | 60 | 60 | 60 | 62 | 64 | 64 | 60 | 54 | 52 | 49 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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