| Point Forecast: Simpsonville SC 34.71N 82.25W (Elev. 860 ft) |
Last Update: 6:34 am EDT Jul 18, 2026 |
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| Date | 07/18 | 07/19 | ||||||||||||||||||||||
| 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) | 73 | 76 | 79 | 84 | 86 | 89 | 90 | 90 | 91 | 91 | 90 | 89 | 86 | 84 | 80 | 78 | 78 | 77 | 76 | 75 | 74 | 74 | 74 | 74 |
| Dewpoint (°F) | 72 | 75 | 76 | 76 | 76 | 76 | 75 | 74 | 74 | 74 | 73 | 74 | 74 | 75 | 75 | 74 | 74 | 74 | 74 | 73 | 72 | 72 | 72 | 72 |
| Heat Index (°F) | 76 | 79 | 93 | 97 | 100 | 100 | 100 | 101 | 100 | 99 | 98 | 95 | 92 | 85 | 79 | 78 | 77 | 76 | 75 | |||||
| Surface Wind (mph) | 2 | 2 | 2 | 5 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 6 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | WSW | WSW | SW | SW | SSW | SSW | SSW | SW | SW | SW | SW | SW | W | W | SW | WSW | W | W | SW | SW | SW | SW | WSW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 40 | 38 | 31 | 25 | 18 | 24 | 39 | 46 | 50 | 37 | 40 | 51 | 57 | 55 | 53 | 46 | 40 | 47 | 34 | 25 | 28 | 29 | 40 | 27 |
| Precipitation Potential (%) | 1 | 0 | 1 | 3 | 7 | 6 | 8 | 22 | 25 | 14 | 21 | 26 | 36 | 32 | 30 | 15 | 17 | 16 | 14 | 4 | 2 | 2 | 1 | 1 |
| Relative Humidity (%) | 96 | 96 | 89 | 78 | 72 | 65 | 61 | 59 | 57 | 57 | 59 | 62 | 67 | 76 | 84 | 87 | 89 | 91 | 92 | 92 | 94 | 94 | 95 | 95 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | -- | SChc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | -- | SChc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- |
| Date | 07/20 | |||||||||||||||||||||||
| 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) | 73 | 75 | 78 | 83 | 86 | 89 | 90 | 91 | 92 | 90 | 89 | 88 | 86 | 83 | 80 | 78 | 77 | 76 | 75 | 74 | 73 | 73 | 72 | 72 |
| Dewpoint (°F) | 72 | 74 | 75 | 75 | 75 | 74 | 74 | 73 | 72 | 72 | 72 | 73 | 74 | 75 | 74 | 74 | 74 | 73 | 73 | 73 | 72 | 72 | 72 | 72 |
| Heat Index (°F) | 75 | 78 | 91 | 96 | 99 | 99 | 99 | 100 | 98 | 96 | 96 | 93 | 90 | 85 | 78 | 77 | 76 | 75 | ||||||
| Surface Wind (mph) | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 5 | 5 | 3 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | WSW | SW | WSW | WSW | SW | SW | SW | SW | SW | WSW | WSW | WNW | W | W | WSW | WSW | SW | WSW | WSW | WSW | W | W | W | WNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 28 | 29 | 31 | 57 | 45 | 25 | 36 | 51 | 45 | 50 | 54 | 61 | 75 | 68 | 83 | 65 | 57 | 55 | 51 | 39 | 35 | 32 | 28 | 29 |
| Precipitation Potential (%) | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 26 | 23 | 25 | 31 | 38 | 37 | 36 | 36 | 36 | 36 | 33 | 27 | 6 | 6 | 6 | 6 | 6 |
| Relative Humidity (%) | 97 | 95 | 88 | 76 | 69 | 62 | 58 | 55 | 54 | 56 | 58 | 61 | 68 | 76 | 83 | 88 | 90 | 92 | 94 | 95 | 97 | 98 | 99 | 100 |
| Rain | -- | -- | -- | -- | -- | -- | -- | Chc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | Chc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- |
