| Point Forecast: 7 Miles E Saint Helena Island SC 32.38N 80.44W (Elev. 10 ft) |
Last Update: 2:37 am EDT Sep 13, 2026 |
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| Date | 09/13 | 09/14 | ||||||||||||||||||||||
| Hour (EDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°F) | 78 | 79 | 80 | 82 | 84 | 85 | 86 | 87 | 87 | 87 | 88 | 87 | 86 | 84 | 83 | 82 | 82 | 82 | 81 | 81 | 81 | 80 | 79 | 79 |
| Dewpoint (°F) | 76 | 77 | 77 | 76 | 76 | 75 | 75 | 75 | 76 | 75 | 76 | 76 | 76 | 77 | 77 | 77 | 78 | 78 | 78 | 78 | 77 | 77 | 77 | 76 |
| Heat Index (°F) | 78 | 79 | 87 | 89 | 93 | 94 | 95 | 96 | 98 | 96 | 99 | 98 | 96 | 94 | 92 | 90 | 91 | 91 | 89 | 89 | 88 | 87 | 79 | 79 |
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | W | W | W | W | W | W | SW | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 29 | 22 | 37 | 26 | 16 | 27 | 36 | 24 | 23 | 28 | 30 | 27 | 28 | 20 | 9 | 44 | 28 | 35 | 25 | 24 | 15 | 9 | 20 | 7 |
| Precipitation Potential (%) | 13 | 4 | 2 | 3 | 3 | 5 | 4 | 15 | 14 | 11 | 13 | 12 | 14 | 7 | 7 | 6 | 8 | 5 | 5 | 2 | 1 | 1 | 1 | 0 |
| Relative Humidity (%) | 94 | 94 | 91 | 82 | 77 | 72 | 70 | 68 | 70 | 68 | 68 | 70 | 72 | 80 | 82 | 85 | 88 | 88 | 91 | 91 | 88 | 91 | 94 | 91 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/15 | |||||||||||||||||||||||
| Hour (EDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°F) | 78 | 79 | 80 | 84 | 87 | 89 | 89 | 90 | 89 | 89 | 90 | 88 | 87 | 85 | 84 | 83 | 82 | 82 | 81 | 81 | 80 | 79 | 79 | 79 |
| Dewpoint (°F) | 76 | 76 | 76 | 75 | 75 | 74 | 74 | 74 | 75 | 74 | 74 | 75 | 75 | 75 | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 77 | 77 | 77 |
| Heat Index (°F) | 78 | 79 | 86 | 92 | 96 | 98 | 98 | 99 | 99 | 98 | 99 | 98 | 96 | 94 | 93 | 91 | 89 | 89 | 88 | 88 | 87 | 79 | 79 | 79 |
| Surface Wind (mph) | 3 | 5 | 3 | 3 | 3 | 3 | 2 | 3 | 5 | 6 | 6 | 6 | 5 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 3 | 6 | 9 | 11 |
| Wind Dir | W | W | NW | NW | NW | N | SE | SE | S | S | S | S | S | S | S | S | S | SE | E | E | E | NE | NE | NE |
| Gust | 20 | 22 | ||||||||||||||||||||||
| Sky Cover (%) | 11 | 7 | 5 | 0 | 0 | 2 | 9 | 23 | 19 | 19 | 19 | 32 | 37 | 53 | 44 | 31 | 18 | 20 | 22 | 24 | 28 | 31 | 35 | 37 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 5 | 5 | 5 |
| Relative Humidity (%) | 94 | 91 | 88 | 74 | 68 | 61 | 61 | 60 | 64 | 61 | 60 | 66 | 68 | 72 | 77 | 80 | 82 | 82 | 88 | 88 | 91 | 94 | 94 | 94 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
