| Point Forecast: Grand Island NY 43.03N 78.97W (Elev. 597 ft) |
Last Update: 2:22 am EDT Sep 16, 2026 |
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| Date | 09/16 | 09/17 | ||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 71 | 70 | 69 | 69 | 68 | 69 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 75 | 75 | 75 | 74 | 72 | 68 | 66 | 65 | 64 | 63 | 63 |
| Dewpoint (°F) | 63 | 64 | 65 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 65 | 65 | 64 | 64 | 62 | 61 | 61 | 60 | 60 | 60 |
| Heat Index (°F) | 75 | 75 | 75 | 75 | ||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | S | S | SW | SW | SW | SW | SW | W | NW | N | N | N | N | N | N | N | N | NE | NE | NE | NE | NE | NE | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 75 | 72 | 70 | 76 | 80 | 84 | 84 | 81 | 72 | 73 | 74 | 72 | 65 | 61 | 61 | 55 | 55 | 51 | 47 | 60 | 58 | 49 | 56 | 57 |
| Precipitation Potential (%) | 10 | 11 | 34 | 50 | 61 | 47 | 20 | 10 | 6 | 5 | 4 | 4 | 5 | 7 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 3 | 3 | 3 |
| Relative Humidity (%) | 76 | 81 | 87 | 90 | 93 | 90 | 93 | 90 | 87 | 84 | 81 | 79 | 76 | 74 | 71 | 71 | 71 | 76 | 81 | 84 | 87 | 87 | 90 | 90 |
| Rain | -- | -- | Chc | Chc | Lkly | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | SChc | SChc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/18 | |||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 62 | 61 | 61 | 62 | 61 | 61 | 63 | 65 | 68 | 70 | 72 | 73 | 74 | 75 | 75 | 74 | 72 | 70 | 68 | 66 | 65 | 64 | 62 | 61 |
| Dewpoint (°F) | 59 | 59 | 59 | 59 | 59 | 60 | 62 | 64 | 65 | 65 | 66 | 66 | 66 | 66 | 65 | 65 | 64 | 63 | 63 | 62 | 62 | 61 | 60 | 59 |
| Heat Index (°F) | 75 | 75 | ||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 |
| Wind Dir | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | N | N | N | N | N | N | N | NW | NW | NW | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 53 | 57 | 67 | 78 | 66 | 68 | 63 | 63 | 64 | 83 | 78 | 72 | 66 | 68 | 69 | 70 | 67 | 65 | 62 | 56 | 51 | 45 | 44 | 42 |
| Precipitation Potential (%) | 13 | 13 | 13 | 18 | 29 | 39 | 44 | 44 | 44 | 44 | 44 | 44 | 14 | 14 | 14 | 14 | 14 | 14 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 90 | 93 | 93 | 90 | 93 | 97 | 97 | 97 | 90 | 84 | 81 | 79 | 76 | 74 | 71 | 74 | 76 | 78 | 84 | 87 | 90 | 90 | 93 | 93 |
| Rain | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
