| Point Forecast: 4 Miles W South Dayton NY 42.36N 79.13W (Elev. 1417 ft) |
Last Update: 7:57 am EDT May 19, 2026 |
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| Date | 05/19 | 05/20 | ||||||||||||||||||||||
| Hour (EDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°F) | 74 | 77 | 79 | 81 | 82 | 83 | 84 | 84 | 83 | 81 | 80 | 78 | 76 | 72 | 71 | 69 | 68 | 67 | 67 | 66 | 65 | 61 | 58 | 57 |
| Dewpoint (°F) | 62 | 63 | 64 | 65 | 64 | 64 | 65 | 66 | 65 | 65 | 65 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 64 | 63 | 62 | 60 | 57 | 55 |
| Heat Index (°F) | 77 | 81 | 83 | 84 | 85 | 86 | 86 | 85 | 83 | 82 | 78 | 76 | ||||||||||||
| Surface Wind (mph) | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | NW | NW |
| Gust | 23 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 20 | |||||||||
| Sky Cover (%) | 54 | 55 | 56 | 57 | 73 | 76 | 79 | 83 | 76 | 77 | 78 | 84 | 94 | 91 | 89 | 86 | 84 | 81 | 85 | 89 | 93 | 91 | 88 | 86 |
| Precipitation Potential (%) | 11 | 7 | 3 | 13 | 24 | 34 | 38 | 44 | 34 | 35 | 36 | 45 | 62 | 81 | 73 | 79 | 61 | 50 | 68 | 71 | 64 | 54 | 33 | 23 |
| Relative Humidity (%) | 69 | 62 | 59 | 57 | 55 | 52 | 52 | 54 | 54 | 60 | 59 | 63 | 67 | 75 | 80 | 83 | 84 | 86 | 88 | 89 | 88 | 96 | 95 | 93 |
| Rain | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Ocnl | Lkly | Ocnl | Lkly | Chc | Lkly | Lkly | Lkly | Chc | Chc | SChc |
| Thunder | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | Chc | Chc | Chc | -- |
| Date | 05/21 | |||||||||||||||||||||||
| Hour (EDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°F) | 54 | 56 | 56 | 58 | 60 | 59 | 59 | 59 | 58 | 57 | 56 | 54 | 52 | 49 | 47 | 45 | 44 | 43 | 42 | 41 | 40 | 41 | 42 | 44 |
| Dewpoint (°F) | 53 | 51 | 50 | 49 | 47 | 46 | 45 | 45 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 40 | 38 | 37 | 37 | 36 | 36 | 36 | 36 | 37 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | N | N | N | N | N | NE | NE | NE | NE | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 75 | 67 | 51 | 45 | 51 | 51 | 41 | 30 | 44 | 38 | 34 | 40 | 19 | 28 | 36 | 40 | 45 | 49 | 48 | 47 | 45 | 45 | 44 | 43 |
| Precipitation Potential (%) | 23 | 23 | 23 | 23 | 23 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 94 | 82 | 78 | 72 | 63 | 62 | 61 | 60 | 59 | 60 | 61 | 64 | 69 | 75 | 80 | 81 | 81 | 80 | 82 | 84 | 84 | 83 | 80 | 75 |
| Rain | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
