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| Point Forecast: Philadelphia PA 39.96N 75.16W (Elev. 26 ft) |
Last Update: 4:23 pm EDT Jun 16, 2021 |
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| Date | 06/16 | 06/17 | ||||||||||||||||||||||
| Hour (EDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°F) | 78 | 78 | 78 | 78 | 74 | 69 | 65 | 64 | 62 | 61 | 60 | 59 | 57 | 57 | 58 | 63 | 66 | 69 | 72 | 74 | 75 | 77 | 79 | 79 |
| Dewpoint (°F) | 47 | 46 | 45 | 44 | 45 | 45 | 46 | 46 | 46 | 46 | 45 | 45 | 44 | 44 | 45 | 45 | 44 | 43 | 42 | 40 | 39 | 38 | 38 | 39 |
| Heat Index (°F) | 78 | 78 | 78 | 78 | 75 | 77 | 79 | 79 | ||||||||||||||||
| Surface Wind (mph) | 11 | 11 | 10 | 9 | 7 | 6 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 |
| Wind Dir | NW | NW | NW | NW | NW | N | N | N | N | N | N | N | N | N | N | N | N | NW | NW | NW | NW | NW | NW | NW |
| Gust | 21 | |||||||||||||||||||||||
| Sky Cover (%) | 26 | 20 | 13 | 6 | 5 | 3 | 1 | 11 | 21 | 31 | 26 | 22 | 17 | 14 | 10 | 7 | 6 | 6 | 5 | 9 | 12 | 16 | 15 | 13 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 33 | 32 | 31 | 30 | 35 | 42 | 50 | 52 | 56 | 58 | 58 | 60 | 62 | 62 | 62 | 52 | 45 | 39 | 34 | 29 | 27 | 24 | 23 | 24 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/18 | |||||||||||||||||||||||
| Hour (EDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°F) | 78 | 77 | 76 | 75 | 72 | 70 | 67 | 65 | 64 | 63 | 61 | 59 | 59 | 60 | 63 | 66 | 70 | 74 | 77 | 80 | 82 | 84 | 84 | 84 |
| Dewpoint (°F) | 40 | 42 | 43 | 45 | 47 | 47 | 48 | 49 | 50 | 50 | 50 | 51 | 51 | 52 | 53 | 54 | 53 | 53 | 52 | 52 | 51 | 51 | 51 | 52 |
| Heat Index (°F) | 78 | 77 | 76 | 75 | 77 | 80 | 81 | 82 | 82 | 82 | ||||||||||||||
| Surface Wind (mph) | 8 | 7 | 6 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 2 | 3 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 11 |
| Wind Dir | NW | NW | W | W | W | W | SW | SW | W | W | W | W | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 12 | 9 | 6 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 7 | 8 | 8 | 9 | 10 | 13 | 16 | 19 | 22 | 25 | 28 | 32 | 36 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 |
| Relative Humidity (%) | 26 | 29 | 31 | 34 | 41 | 44 | 50 | 56 | 60 | 62 | 67 | 75 | 75 | 75 | 70 | 65 | 55 | 48 | 42 | 38 | 34 | 32 | 32 | 33 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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