| Point Forecast: 3 Miles NE Santee SC 33.52N 80.45W (Elev. 69 ft) |
Last Update: 3:01 pm EDT Jul 18, 2026 |
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| Date | 07/18 | 07/19 | ||||||||||||||||||||||
| Hour (EDT) | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 |
| Temperature (°F) | 88 | 89 | 87 | 87 | 86 | 84 | 82 | 81 | 80 | 79 | 79 | 78 | 78 | 78 | 77 | 77 | 76 | 77 | 78 | 80 | 82 | 84 | 87 | 88 |
| Dewpoint (°F) | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 74 | 76 | 77 | 77 | 77 | 76 | 75 |
| Heat Index (°F) | 100 | 102 | 99 | 99 | 97 | 93 | 89 | 87 | 85 | 79 | 79 | 78 | 78 | 78 | 77 | 77 | 76 | 77 | 78 | 87 | 90 | 94 | 98 | 98 |
| Surface Wind (mph) | 6 | 7 | 7 | 7 | 7 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 7 | 6 | 7 | 7 | 8 | 8 | 8 | 9 |
| Wind Dir | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 22 | 25 | 25 | 43 | 57 | 43 | 51 | 46 | 51 | 33 | 15 | 24 | 18 | 7 | 9 | 10 | 8 | 14 | 10 | 17 | 19 | 26 | 21 | 11 |
| Precipitation Potential (%) | 14 | 13 | 15 | 22 | 35 | 22 | 14 | 11 | 10 | 8 | 4 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 4 | 5 | 6 | 5 | 8 |
| Relative Humidity (%) | 70 | 68 | 72 | 72 | 75 | 77 | 82 | 82 | 85 | 85 | 85 | 88 | 88 | 88 | 88 | 88 | 90 | 90 | 94 | 91 | 85 | 80 | 70 | 66 |
| Rain | -- | -- | SChc | SChc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | SChc | SChc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/20 | |||||||||||||||||||||||
| Hour (EDT) | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 |
| Temperature (°F) | 88 | 89 | 88 | 88 | 88 | 85 | 83 | 81 | 80 | 80 | 79 | 78 | 78 | 78 | 77 | 77 | 76 | 77 | 78 | 80 | 82 | 84 | 86 | 87 |
| Dewpoint (°F) | 75 | 75 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 75 | 76 | 76 | 76 | 75 | 75 |
| Heat Index (°F) | 98 | 99 | 97 | 97 | 97 | 93 | 90 | 86 | 84 | 84 | 79 | 78 | 78 | 78 | 77 | 77 | 76 | 77 | 78 | 86 | 89 | 93 | 95 | 96 |
| Surface Wind (mph) | 9 | 9 | 8 | 8 | 7 | 5 | 6 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 6 | 6 |
| Wind Dir | SW | SW | SW | SW | SW | SW | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 19 | 12 | 14 | 6 | 33 | 36 | 33 | 34 | 28 | 41 | 43 | 29 | 15 | 12 | 20 | 20 | 15 | 5 | 11 | 17 | 29 | 41 | 53 |
| Precipitation Potential (%) | 9 | 9 | 6 | 6 | 7 | 8 | 6 | 2 | 6 | 14 | 14 | 7 | 6 | 7 | 8 | 8 | 6 | 4 | 4 | 4 | 4 | 4 | 4 | 30 |
| Relative Humidity (%) | 66 | 64 | 63 | 63 | 63 | 70 | 74 | 77 | 79 | 79 | 82 | 85 | 85 | 85 | 88 | 88 | 90 | 88 | 91 | 88 | 82 | 77 | 70 | 68 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc |
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