| Point Forecast: Boston MA 42.36N 71.07W (Elev. 4 m) |
Last Update: 3:27 pm EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| 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 (°C) | 31 | 31 | 30 | 29 | 27 | 26 | 25 | 25 | 24 | 23 | 23 | 23 | 22 | 23 | 23 | 25 | 27 | 29 | 31 | 32 | 32 | 32 | 32 | 32 |
| Dewpoint (°C) | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Heat Index (°C) | 34 | 34 | 33 | 32 | 29 | 26 | 25 | 25 | 24 | 25 | 29 | 32 | 34 | 36 | 36 | 36 | 36 | 36 | ||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 5 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 7 |
| Wind Dir | SW | S | SW | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 58 | 49 | 40 | 31 | 22 | 13 | 19 | 24 | 23 | 21 | 20 | 22 | 24 | 27 | 24 | 20 | 24 | 20 | 17 | 18 | 20 | 21 | 29 | 36 |
| Precipitation Potential (%) | 16 | 16 | 16 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 |
| Relative Humidity (%) | 61 | 61 | 63 | 70 | 74 | 79 | 85 | 82 | 85 | 90 | 87 | 90 | 93 | 93 | 90 | 85 | 77 | 67 | 61 | 57 | 56 | 56 | 56 | 56 |
| Rain | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| 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 (°C) | 32 | 32 | 31 | 30 | 29 | 28 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 28 | 29 | 30 | 31 | 31 | 31 | 31 |
| Dewpoint (°C) | 22 | 23 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 |
| Heat Index (°C) | 36 | 37 | 35 | 34 | 32 | 31 | 29 | 29 | 29 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 29 | 31 | 33 | 34 | 35 | 36 | 36 | 36 |
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 10 | 10 | 10 | 10 |
| Wind Dir | S | S | S | S | S | SW | SW | SW | SW | SW | SW | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 44 | 47 | 51 | 11 | 26 | 41 | 57 | 63 | 70 | 77 | 83 | 90 | 97 | 92 | 88 | 84 | 75 | 65 | 65 | 65 | 66 | 66 | 67 | 67 |
| Precipitation Potential (%) | 2 | 1 | 1 | 3 | 5 | 6 | 8 | 10 | 12 | 14 | 15 | 17 | 19 | 24 | 29 | 34 | 39 | 43 | 48 | 48 | 49 | 49 | 50 | 50 |
| Relative Humidity (%) | 54 | 58 | 59 | 65 | 67 | 72 | 74 | 77 | 77 | 79 | 82 | 85 | 85 | 85 | 85 | 85 | 80 | 76 | 72 | 70 | 69 | 68 | 66 | 64 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc |
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