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| Point Forecast: 4 Miles WSW Mount Rushmore SD 43.85N 103.55W (Elev. 6490 ft) |
Last Update: 8:09 am MST Jan 18, 2020 |
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| Date | 01/18 | 01/19 | ||||||||||||||||||||||
| Hour (MST) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°F) | 16 | 17 | 18 | 20 | 20 | 21 | 20 | 19 | 19 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 18 | 18 | 20 | 20 | 20 | 20 |
| Dewpoint (°F) | 0 | 1 | 3 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 10 | 11 | 11 | 12 |
| Wind Chill (°F) | -2 | -1 | 1 | 4 | 5 | 8 | 7 | 7 | 7 | 5 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 8 | 8 | 10 | 10 | 10 | 10 |
| Surface Wind (mph) | 22 | 23 | 23 | 21 | 18 | 15 | 13 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Wind Dir | NW | NW | NW | NW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | NW | NW | NW |
| Gust | 30 | 32 | 32 | 29 | 25 | 21 | 18 | 16 | ||||||||||||||||
| Sky Cover (%) | 36 | 48 | 51 | 53 | 39 | 27 | 18 | 22 | 13 | 13 | 20 | 18 | 21 | 32 | 39 | 77 | 84 | 71 | 41 | 33 | 20 | 26 | 8 | 6 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 2 |
| Relative Humidity (%) | 49 | 50 | 51 | 49 | 51 | 49 | 51 | 54 | 54 | 58 | 61 | 61 | 61 | 61 | 64 | 64 | 64 | 64 | 70 | 70 | 64 | 67 | 67 | 71 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 01/20 | |||||||||||||||||||||||
| Hour (MST) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°F) | 22 | 25 | 27 | 28 | 28 | 28 | 28 | 27 | 26 | 25 | 25 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 23 | 24 |
| Dewpoint (°F) | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 |
| Wind Chill (°F) | 12 | 16 | 17 | 19 | 19 | 19 | 17 | 15 | 13 | 12 | 13 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 14 |
| Surface Wind (mph) | 9 | 9 | 10 | 10 | 10 | 10 | 13 | 15 | 17 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 10 | 9 |
| Wind Dir | NW | W | W | W | W | W | W | NW | NW | NW | W | W | W | W | W | W | W | W | W | W | W | W | NW | NW |
| Gust | 21 | |||||||||||||||||||||||
| Sky Cover (%) | 20 | 16 | 17 | 15 | 13 | 11 | 10 | 8 | 6 | 9 | 14 | 17 | 15 | 10 | 8 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 68 | 60 | 57 | 55 | 55 | 55 | 55 | 55 | 57 | 57 | 57 | 60 | 60 | 57 | 57 | 57 | 55 | 55 | 55 | 52 | 52 | 54 | 57 | 54 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Snow | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Freezing Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sleet | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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