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| Point Forecast: 4 Miles WSW Mount Rushmore SD 43.85N 103.55W (Elev. 6490 ft) |
Last Update: 11:56 am MST Jan 18, 2020 |
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| Date | 01/18 | 01/19 | ||||||||||||||||||||||
| Hour (MST) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 21 | 20 | 18 | 17 | 15 | 14 | 14 | 12 | 14 | 12 | 15 | 13 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 21 | 24 | 26 | 29 | 29 |
| Dewpoint (°F) | 4 | 5 | 5 | 5 | 4 | 4 | 4 | 5 | 6 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 12 | 13 | 13 | 14 | 13 |
| Wind Chill (°F) | 3 | 2 | 0 | 0 | -2 | -3 | -3 | -5 | -3 | -4 | 0 | -3 | -1 | -1 | 0 | 1 | 2 | 2 | 2 | 7 | 10 | 13 | 17 | 17 |
| Surface Wind (mph) | 18 | 17 | 15 | 13 | 11 | 10 | 9 | 8 | 8 | 9 | 11 | 15 | 17 | 17 | 18 | 17 | 15 | 15 | 15 | 18 | 20 | 18 | 20 | 20 |
| Wind Dir | NW | NW | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 25 | 23 | 21 | 17 | 22 | 24 | 24 | 25 | 24 | 21 | 21 | 21 | 25 | 28 | 25 | 28 | 28 | |||||||
| Sky Cover (%) | 22 | 22 | 22 | 5 | 4 | 4 | 11 | 11 | 29 | 36 | 38 | 39 | 40 | 44 | 21 | 18 | 22 | 13 | 12 | 25 | 18 | 0 | 0 | 0 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 47 | 51 | 56 | 58 | 61 | 64 | 64 | 73 | 70 | 73 | 67 | 73 | 67 | 70 | 67 | 70 | 70 | 73 | 77 | 68 | 62 | 57 | 53 | 51 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 01/20 | |||||||||||||||||||||||
| Hour (MST) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 30 | 29 | 27 | 24 | 23 | 23 | 22 | 21 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 20 | 19 | 18 | 19 | 22 | 27 | 31 | 35 | 36 |
| Dewpoint (°F) | 14 | 15 | 14 | 13 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 11 | 12 | 13 | 14 | 15 |
| Wind Chill (°F) | 18 | 16 | 13 | 10 | 9 | 9 | 8 | 7 | 6 | 7 | 7 | 7 | 7 | 9 | 9 | 9 | 8 | 8 | 9 | 13 | 19 | 23 | 27 | 28 |
| Surface Wind (mph) | 20 | 22 | 21 | 18 | 20 | 20 | 18 | 18 | 17 | 15 | 14 | 15 | 15 | 14 | 13 | 10 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 11 |
| Wind Dir | NW | NW | NW | W | W | W | W | W | W | W | W | NW | NW | NW | W | W | W | W | W | W | SW | S | S | S |
| Gust | 28 | 31 | 29 | 25 | 28 | 28 | 25 | 25 | 24 | 21 | 20 | 21 | 21 | 20 | ||||||||||
| Sky Cover (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 7 | 6 | 5 | 4 | 4 | 5 | 5 | 6 | 8 | 9 | 8 | 7 | 6 | 7 | 8 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 51 | 55 | 57 | 62 | 59 | 59 | 65 | 68 | 71 | 71 | 71 | 71 | 71 | 68 | 65 | 67 | 67 | 70 | 67 | 62 | 53 | 47 | 41 | 42 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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