| Point Forecast: Boston, Logan International Airport MA 42.38N 71.01W (Elev. 3 ft) |
Last Update: 3:27 pm EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 86 | 85 | 82 | 79 | 78 | 77 | 76 | 75 | 74 | 73 | 73 | 72 | 72 | 74 | 76 | 79 | 83 | 85 | 86 | 87 | 87 | 87 | 88 | 88 |
| Dewpoint (°F) | 72 | 72 | 72 | 72 | 72 | 72 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 71 | 71 | 72 | 72 | 72 | 73 | 72 | 72 | 72 | 72 | 72 |
| Heat Index (°F) | 92 | 91 | 87 | 79 | 78 | 77 | 76 | 75 | 76 | 79 | 88 | 91 | 93 | 94 | 94 | 94 | 95 | 95 | ||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 6 | 7 | 8 | 8 | 8 |
| Wind Dir | S | SW | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | SE | SE | SE | SE | SE | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 48 | 39 | 31 | 22 | 12 | 19 | 25 | 24 | 23 | 22 | 23 | 24 | 25 | 23 | 20 | 22 | 19 | 16 | 18 | 19 | 21 | 28 | 35 | 42 |
| Precipitation Potential (%) | 16 | 14 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 63 | 65 | 72 | 79 | 82 | 85 | 85 | 87 | 90 | 90 | 90 | 93 | 93 | 90 | 85 | 79 | 70 | 65 | 65 | 61 | 61 | 61 | 59 | 59 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 88 | 87 | 85 | 83 | 81 | 80 | 79 | 78 | 77 | 76 | 76 | 76 | 77 | 78 | 79 | 81 | 82 | 84 | 85 | 86 | 86 | 87 | 86 | 86 |
| Dewpoint (°F) | 72 | 72 | 73 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 73 | 74 | 74 | 74 | 75 | 75 | 75 | 74 | 74 |
| Heat Index (°F) | 95 | 94 | 92 | 88 | 85 | 84 | 79 | 78 | 77 | 76 | 76 | 76 | 77 | 78 | 78 | 84 | 87 | 90 | 92 | 94 | 95 | 95 | 95 | 94 |
| Surface Wind (mph) | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 11 | 11 |
| Wind Dir | S | S | S | S | SW | SW | SW | SW | SW | SW | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 46 | 50 | 11 | 25 | 39 | 53 | 60 | 68 | 75 | 82 | 89 | 96 | 91 | 87 | 82 | 73 | 64 | 65 | 65 | 65 | 65 | 66 | 66 | 66 |
| Precipitation Potential (%) | 1 | 1 | 3 | 4 | 6 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 24 | 28 | 33 | 38 | 43 | 47 | 48 | 48 | 48 | 49 | 49 | 49 |
| Relative Humidity (%) | 59 | 61 | 67 | 70 | 74 | 77 | 79 | 82 | 85 | 87 | 87 | 87 | 85 | 85 | 85 | 81 | 77 | 74 | 72 | 71 | 70 | 68 | 68 | 68 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc |
