| Point Forecast: Harpers Ferry IA 43.2N 91.14W |
Last Update: 5:43 am CDT Jun 20, 2025 |
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| Date | 06/20 | 06/21 | ||||||||||||||||||||||
| Hour (CDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 69 | 68 | 66 | 67 | 68 | 71 | 74 | 78 | 80 | 83 | 85 | 87 | 88 | 87 | 85 | 82 | 81 | 81 | 80 | 80 | 78 | 78 | 78 | 77 |
| Dewpoint (°F) | 64 | 64 | 65 | 65 | 66 | 66 | 68 | 69 | 70 | 70 | 70 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 |
| Heat Index (°F) | 78 | 83 | 87 | 90 | 93 | 95 | 94 | 91 | 87 | 85 | 85 | 84 | 84 | 78 | 78 | 78 | 77 | |||||||
| Surface Wind (mph) | 8 | 8 | 7 | 8 | 9 | 10 | 11 | 13 | 13 | 11 | 11 | 11 | 10 | 8 | 9 | 9 | 9 | 10 | 11 | 13 | 13 | 13 | 13 | 14 |
| Wind Dir | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | 20 | 20 | 22 | 23 | 23 | 22 | 22 | 23 | 22 | 20 | 20 | 20 | 18 | 18 | 21 | 24 | 23 | 24 | 26 | 28 | ||||
| Sky Cover (%) | 87 | 96 | 98 | 95 | 94 | 83 | 77 | 69 | 63 | 62 | 57 | 61 | 62 | 62 | 66 | 63 | 54 | 45 | 37 | 32 | 30 | 30 | 31 | 31 |
| Precipitation Potential (%) | 87 | 62 | 37 | 35 | 33 | 31 | 21 | 10 | 3 | 4 | 4 | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Relative Humidity (%) | 82 | 89 | 97 | 93 | 93 | 84 | 82 | 74 | 72 | 65 | 61 | 59 | 59 | 61 | 65 | 72 | 74 | 74 | 77 | 77 | 82 | 82 | 82 | 85 |
| Rain | Ocnl | Lkly | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/22 | |||||||||||||||||||||||
| Hour (CDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 76 | 78 | 81 | 83 | 85 | 88 | 90 | 92 | 94 | 95 | 96 | 96 | 95 | 94 | 92 | 89 | 86 | 85 | 84 | 83 | 82 | 81 | 80 | 79 |
| Dewpoint (°F) | 71 | 72 | 72 | 72 | 74 | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 72 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| Heat Index (°F) | 76 | 78 | 85 | 88 | 93 | 97 | 99 | 102 | 105 | 106 | 107 | 106 | 105 | 102 | 99 | 94 | 91 | 90 | 88 | 87 | 86 | 85 | 83 | 79 |
| Surface Wind (mph) | 14 | 14 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 17 | 16 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | S | S | S |
| Gust | 29 | 30 | 31 | 31 | 32 | 31 | 31 | 31 | 31 | 32 | 32 | 31 | 30 | 25 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 |
| Sky Cover (%) | 30 | 17 | 11 | 10 | 11 | 12 | 12 | 11 | 9 | 7 | 6 | 6 | 7 | 10 | 9 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 |
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 85 | 82 | 74 | 70 | 70 | 63 | 60 | 56 | 53 | 51 | 49 | 48 | 49 | 49 | 51 | 54 | 59 | 61 | 63 | 65 | 67 | 69 | 72 | 74 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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