


Point Forecast: 2 Miles WNW Custer SD 43.78N 103.63W (Elev. 1707 m) |
Last Update: 1:50 pm MDT Jul 15, 2025 |
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Date | 07/15 | 07/16 | ||||||||||||||||||||||
Hour (MDT) | 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 (°C) | 21 | 19 | 19 | 18 | 17 | 16 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 11 | 11 | 12 | 11 | 11 | 11 |
Dewpoint (°C) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 11 | 11 | 11 | 10 | 11 | 10 |
Heat Index (°C) | ||||||||||||||||||||||||
Surface Wind (mph) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 |
Wind Dir | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | N | N | NE | E | NE | E | E | E | E | E | E | E | E | E |
Gust | 24 | 24 | 24 | 24 | 24 | |||||||||||||||||||
Sky Cover (%) | 62 | 65 | 67 | 71 | 75 | 81 | 88 | 94 | 95 | 97 | 98 | 98 | 98 | 97 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 97 | 97 |
Precipitation Potential (%) | 37 | 45 | 41 | 37 | 33 | 36 | 39 | 42 | 50 | 58 | 65 | 68 | 71 | 75 | 70 | 61 | 75 | 63 | 73 | 70 | 77 | 75 | 66 | 70 |
Relative Humidity (%) | 62 | 70 | 72 | 77 | 84 | 88 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 96 | 100 | 100 | 100 | 100 | 100 | 100 | 93 | 93 | 96 | 96 |
Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Ocnl | Lkly | Lkly | Ocnl | Lkly | Lkly | Lkly | Ocnl | Ocnl | Lkly | Lkly |
Thunder | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
Date | 07/17 | |||||||||||||||||||||||
Hour (MDT) | 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 (°C) | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 |
Dewpoint (°C) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 8 | 9 | 10 | 10 | 11 | 11 |
Heat Index (°C) | ||||||||||||||||||||||||
Surface Wind (mph) | 7 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 10 |
Wind Dir | NE | E | NE | NE | NE | NE | NE | E | E | E | E | SE | SE | SE | SE | SE | SE | SE | S | S | S | S | S | S |
Gust | ||||||||||||||||||||||||
Sky Cover (%) | 97 | 97 | 93 | 90 | 86 | 82 | 97 | 98 | 97 | 94 | 90 | 91 | 93 | 94 | 94 | 94 | 94 | 89 | 83 | 78 | 76 | 73 | 71 | 63 |
Precipitation Potential (%) | 62 | 61 | 52 | 36 | 27 | 27 | 27 | 27 | 27 | 27 | 24 | 24 | 24 | 24 | 24 | 24 | 5 | 5 | 5 | 5 | 5 | 5 | 12 | 12 |
Relative Humidity (%) | 89 | 89 | 93 | 93 | 96 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 98 | 93 | 90 | 82 |
Rain | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
Thunder | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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