| Point Forecast: Central Islip NY 40.79N 73.2W (Elev. 98 ft) |
Last Update: 5:47 pm EDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (EDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 76 | 73 | 73 | 73 | 72 | 73 | 72 | 72 | 71 | 72 | 71 | 72 | 73 | 75 | 76 | 77 | 79 | 81 | 81 | 82 | 83 | 81 | 81 | 79 |
| Dewpoint (°F) | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 71 | 73 | 73 | 73 | 73 | 73 | 74 | 73 | 74 | 74 | 73 | 73 | 73 |
| Heat Index (°F) | 76 | 75 | 76 | 77 | 79 | 86 | 86 | 88 | 90 | 86 | 86 | 79 | ||||||||||||
| Surface Wind (mph) | 6 | 6 | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 8 | 8 | 7 |
| Wind Dir | SE | SE | SE | SE | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 72 | 80 | 82 | 84 | 85 | 80 | 87 | 74 | 85 | 84 | 72 | 60 | 60 | 68 | 71 | 73 | 66 | 50 | 56 | 33 | 33 | 52 | 52 | 52 |
| Precipitation Potential (%) | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 22 | 22 | 22 | 30 | 30 | 30 |
| Relative Humidity (%) | 85 | 93 | 93 | 93 | 97 | 93 | 97 | 93 | 97 | 93 | 97 | 97 | 100 | 94 | 90 | 87 | 82 | 79 | 77 | 77 | 74 | 77 | 77 | 82 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (EDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 77 | 76 | 75 | 75 | 75 | 75 | 75 | 74 | 73 | 73 | 73 | 74 | 75 | 77 | 78 | 80 | 81 | 82 | 83 | 84 | 85 | 84 | 83 | 81 |
| Dewpoint (°F) | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 75 | 76 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 74 |
| Heat Index (°F) | 77 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 77 | 78 | 84 | 86 | 87 | 89 | 90 | 92 | 90 | 89 | 86 | |||||
| Surface Wind (mph) | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 6 |
| Wind Dir | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 76 | 76 | 79 | 81 | 81 | 82 | 82 | 83 | 83 | 84 | 79 | 74 | 79 | 79 | 78 | 78 | 74 | 71 | 67 | 62 | 57 | 52 | 52 | 52 |
| Precipitation Potential (%) | 45 | 45 | 45 | 45 | 45 | 45 | 48 | 48 | 48 | 48 | 48 | 48 | 40 | 40 | 40 | 40 | 40 | 40 | 27 | 27 | 27 | 27 | 27 | 27 |
| Relative Humidity (%) | 87 | 90 | 94 | 94 | 94 | 94 | 94 | 97 | 97 | 97 | 97 | 93 | 100 | 97 | 88 | 79 | 77 | 74 | 72 | 70 | 67 | 70 | 72 | 79 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- |
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