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| Point Forecast: Rapid City SD 44.08N 103.24W (Elev. 1003 m) |
Last Update: 4:27 am MDT Aug 11, 2022 |
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| Date | 08/11 | 08/12 | ||||||||||||||||||||||
| Hour (MDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°C) | 21 | 21 | 22 | 26 | 29 | 32 | 34 | 36 | 38 | 38 | 38 | 38 | 38 | 38 | 36 | 33 | 30 | 28 | 27 | 26 | 26 | 23 | 23 | 23 |
| Dewpoint (°C) | 12 | 12 | 13 | 13 | 13 | 13 | 11 | 9 | 9 | 8 | 8 | 7 | 7 | 8 | 8 | 9 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 13 |
| Heat Index (°C) | 26 | 29 | 31 | 32 | 34 | 36 | 36 | 36 | 36 | 36 | 36 | 34 | 32 | 29 | 28 | 27 | 26 | 26 | ||||||
| Surface Wind (mph) | 5 | 5 | 3 | 6 | 7 | 10 | 13 | 15 | 15 | 14 | 14 | 14 | 13 | 10 | 10 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | W | NW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 23 | 25 | 19 | 13 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 14 | 20 | 26 | 32 | 39 | 45 | 46 | 47 | 48 | 49 |
| Precipitation Potential (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 |
| Relative Humidity (%) | 55 | 59 | 56 | 47 | 38 | 31 | 25 | 20 | 18 | 16 | 16 | 15 | 15 | 16 | 19 | 23 | 30 | 36 | 41 | 42 | 43 | 53 | 53 | 55 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/13 | |||||||||||||||||||||||
| Hour (MDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°C) | 22 | 22 | 24 | 27 | 29 | 31 | 32 | 33 | 34 | 35 | 36 | 36 | 36 | 34 | 32 | 30 | 28 | 27 | 26 | 24 | 23 | 23 | 22 | 22 |
| Dewpoint (°C) | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 |
| Heat Index (°C) | 24 | 27 | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 34 | 34 | 33 | 31 | 29 | 28 | 27 | 26 | 24 | ||||||
| Surface Wind (mph) | 5 | 5 | 5 | 7 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 8 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | W | W | NW | N | N | N | N | N | N | N | N | N | NE | NE | NE | NE | NE | NE | N | N | N | NW | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 49 | 49 | 40 | 31 | 22 | 19 | 16 | 13 | 16 | 19 | 21 | 26 | 31 | 35 | 41 | 47 | 53 | 58 | 63 | 68 | 67 | 67 | 66 | 69 |
| Precipitation Potential (%) | 9 | 4 | 4 | 4 | 4 | 4 | 4 | 14 | 14 | 14 | 14 | 14 | 14 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Relative Humidity (%) | 59 | 59 | 55 | 47 | 43 | 38 | 35 | 32 | 29 | 26 | 25 | 25 | 26 | 29 | 33 | 37 | 41 | 45 | 50 | 54 | 57 | 62 | 64 | 66 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc |
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