| Point Forecast: Boston MA 42.36N 71.07W (Elev. 4 m) |
Last Update: 2:20 pm EDT Aug 9, 2026 |
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| Date | 08/09 | 08/10 | ||||||||||||||||||||||
| Hour (EDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°C) | 33 | 33 | 33 | 33 | 33 | 32 | 29 | 28 | 27 | 26 | 24 | 24 | 23 | 22 | 22 | 21 | 21 | 22 | 23 | 24 | 27 | 28 | 29 | 31 |
| Dewpoint (°C) | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
| Heat Index (°C) | 35 | 34 | 34 | 33 | 33 | 32 | 29 | 28 | 27 | 26 | 24 | 24 | 24 | 28 | 29 | 30 | 31 | |||||||
| Surface Wind (mph) | 11 | 11 | 11 | 10 | 10 | 8 | 7 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 2 | 3 | 5 | 7 | 7 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | NW | S | S | S | SW | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 23 | 17 | 9 | 7 | 6 | 10 | 9 | 4 | 4 | 3 | 3 | 2 | 3 | 4 | 6 | 9 | 8 | 2 | 1 | 10 | 23 | 24 | 27 | 17 |
| 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 (%) | 45 | 42 | 40 | 37 | 38 | 40 | 46 | 50 | 55 | 57 | 61 | 61 | 63 | 68 | 70 | 72 | 75 | 73 | 70 | 64 | 54 | 51 | 48 | 44 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/11 | |||||||||||||||||||||||
| Hour (EDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°C) | 31 | 32 | 32 | 32 | 31 | 31 | 28 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 22 | 25 | 26 | 27 | 28 | 28 | 29 |
| Dewpoint (°C) | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 |
| Heat Index (°C) | 32 | 32 | 32 | 32 | 32 | 31 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 24 | 25 | 26 | 28 | 28 | 29 | 29 | ||||
| Surface Wind (mph) | 8 | 8 | 8 | 8 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 |
| Wind Dir | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 24 | 52 | 56 | 54 | 54 | 77 | 63 | 44 | 25 | 28 | 9 | 15 | 10 | 12 | 9 | 8 | 9 | 10 | 4 | 13 | 21 | 25 | 29 |
| Precipitation Potential (%) | 1 | 3 | 6 | 8 | 8 | 9 | 15 | 11 | 3 | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 42 | 43 | 43 | 43 | 45 | 49 | 55 | 60 | 64 | 67 | 71 | 71 | 74 | 76 | 76 | 78 | 78 | 80 | 68 | 61 | 58 | 53 | 48 | 47 |
| Rain | -- | -- | -- | -- | -- | -- | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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