| Point Forecast: Central Islip NY 40.79N 73.2W (Elev. 98 ft) |
Last Update: 2:29 pm EDT Jul 14, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 74 | 74 | 74 | 73 | 73 | 73 | 74 | 75 | 77 | 78 | 80 | 81 | 82 | 82 | 83 | 83 | 82 | 81 | 79 | 77 | 76 | 75 | 74 | 74 |
| Dewpoint (°F) | 73 | 73 | 73 | 73 | 72 | 72 | 73 | 74 | 74 | 73 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 74 |
| Heat Index (°F) | 75 | 77 | 78 | 84 | 86 | 87 | 87 | 89 | 89 | 87 | 85 | 79 | 77 | 76 | 75 | |||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 5 | 3 | 3 | 3 |
| Wind Dir | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 83 | 92 | 82 | 81 | 84 | 81 | 75 | 69 | 76 | 65 | 51 | 40 | 37 | 38 | 28 | 28 | 14 | 18 | 28 | 42 | 49 | 49 | 47 | 45 |
| Precipitation Potential (%) | 53 | 63 | 63 | 63 | 62 | 62 | 62 | 47 | 47 | 47 | 19 | 19 | 19 | 16 | 16 | 16 | 7 | 7 | 7 | 11 | 11 | 11 | 12 | 12 |
| Relative Humidity (%) | 97 | 97 | 97 | 100 | 97 | 97 | 97 | 97 | 92 | 84 | 76 | 77 | 75 | 74 | 72 | 72 | 74 | 77 | 82 | 88 | 91 | 94 | 97 | 100 |
| Rain | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 74 | 74 | 73 | 73 | 73 | 73 | 74 | 76 | 78 | 80 | 83 | 85 | 86 | 86 | 86 | 86 | 85 | 83 | 81 | 79 | 78 | 77 | 77 | 77 |
| Dewpoint (°F) | 74 | 74 | 73 | 73 | 73 | 73 | 74 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 | 75 |
| Heat Index (°F) | 76 | 78 | 85 | 90 | 94 | 95 | 95 | 95 | 95 | 94 | 90 | 87 | 79 | 78 | 77 | 77 | 77 | |||||||
| Surface Wind (mph) | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 43 | 41 | 47 | 53 | 59 | 57 | 56 | 58 | 56 | 55 | 53 | 52 | 51 | 51 | 52 | 54 | 56 | 64 | 73 | 81 | 83 | 85 | 87 | 88 |
| Precipitation Potential (%) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 16 | 16 | 16 | 16 | 16 | 16 | 25 | 25 | 25 | 25 | 25 | 25 | 36 | 36 | 36 | 36 | 36 |
| Relative Humidity (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 94 | 85 | 77 | 72 | 70 | 70 | 70 | 70 | 72 | 77 | 82 | 88 | 91 | 94 | 94 | 94 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
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