| Point Forecast: Grand Island NY 43.03N 78.97W (Elev. 182 m) |
Last Update: 4:35 pm EDT Aug 8, 2026 |
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| Date | 08/08 | 08/09 | ||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°C) | 26 | 26 | 24 | 23 | 22 | 22 | 21 | 21 | 20 | 19 | 18 | 17 | 17 | 17 | 18 | 20 | 23 | 24 | 25 | 26 | 27 | 27 | 27 | 27 |
| Dewpoint (°C) | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 15 |
| Heat Index (°C) | 28 | 26 | 24 | 24 | 25 | 27 | 27 | 27 | 28 | 27 | ||||||||||||||
| Surface Wind (mph) | 14 | 11 | 7 | 5 | 6 | 5 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 5 | 6 | 6 | 7 | 7 |
| Wind Dir | SW | W | SW | S | W | W | SW | S | SW | SW | W | W | W | W | NW | NW | NW | NW | W | W | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 39 | 54 | 54 | 47 | 53 | 52 | 50 | 32 | 32 | 22 | 14 | 17 | 20 | 14 | 11 | 7 | 4 | 1 | 1 | 3 | 6 | 9 | 5 | 14 |
| Precipitation Potential (%) | 9 | 9 | 6 | 20 | 30 | 28 | 25 | 15 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 74 | 75 | 80 | 87 | 90 | 91 | 94 | 94 | 94 | 96 | 95 | 93 | 93 | 91 | 87 | 78 | 65 | 57 | 54 | 51 | 49 | 49 | 48 | 48 |
| Rain | -- | -- | -- | SChc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | SChc | SChc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/10 | |||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°C) | 27 | 26 | 24 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 20 | 21 | 22 | 23 | 24 | 24 | 26 | 26 | 27 | 27 | 27 |
| Dewpoint (°C) | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 |
| Heat Index (°C) | 27 | 26 | 24 | 24 | 24 | 26 | 26 | 28 | 29 | 29 | ||||||||||||||
| Surface Wind (mph) | 6 | 5 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 7 | 7 | 8 | 9 | 11 | 11 | 11 | 11 | 13 | 13 | 13 | 13 | 11 |
| Wind Dir | SW | SW | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 8 | 17 | 46 | 50 | 65 | 82 | 68 | 66 | 64 | 47 | 64 | 80 | 86 | 87 | 86 | 86 | 86 | 86 | 86 | 86 | 74 | 74 | 74 | 74 |
| Precipitation Potential (%) | 0 | 0 | 5 | 5 | 5 | 0 | 0 | 0 | 12 | 12 | 12 | 23 | 45 | 68 | 79 | 79 | 79 | 79 | 79 | 79 | 61 | 61 | 61 | 61 |
| Relative Humidity (%) | 50 | 54 | 61 | 68 | 74 | 76 | 78 | 79 | 80 | 84 | 86 | 88 | 94 | 92 | 93 | 92 | 88 | 84 | 81 | 79 | 77 | 75 | 73 | 72 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Lkly | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc |
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