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| Point Forecast: Marlborough MA 42.36N 71.55W (Elev. 446 ft) |
Last Update: 7:57 pm EDT Jul 25, 2021 |
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| Date | 07/26 | 07/27 | ||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 67 | 66 | 66 | 66 | 66 | 68 | 70 | 73 | 76 | 80 | 83 | 85 | 87 | 88 | 87 | 86 | 83 | 80 | 77 | 74 | 72 | 71 | 69 | 68 |
| Dewpoint (°F) | 66 | 65 | 65 | 64 | 64 | 65 | 65 | 65 | 64 | 64 | 63 | 62 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 59 |
| Heat Index (°F) | 76 | 82 | 84 | 86 | 87 | 88 | 87 | 86 | 83 | 81 | 77 | |||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 73 | 51 | 34 | 16 | 13 | 10 | 6 | 9 | 11 | 13 | 18 | 22 | 26 | 24 | 21 | 18 | 17 | 15 | 14 | 13 | 12 | 11 | 9 | 8 |
| Precipitation Potential (%) | 3 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 2 |
| Relative Humidity (%) | 97 | 97 | 97 | 93 | 93 | 90 | 84 | 76 | 66 | 58 | 51 | 46 | 42 | 40 | 42 | 43 | 47 | 52 | 58 | 64 | 68 | 68 | 73 | 73 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/28 | |||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 66 | 65 | 64 | 64 | 65 | 66 | 69 | 73 | 77 | 80 | 82 | 83 | 84 | 84 | 84 | 83 | 81 | 78 | 75 | 73 | 71 | 69 | 68 | 66 |
| Dewpoint (°F) | 59 | 59 | 58 | 58 | 59 | 60 | 62 | 62 | 62 | 62 | 61 | 61 | 60 | 61 | 61 | 62 | 63 | 64 | 65 | 64 | 64 | 63 | 63 | 62 |
| Heat Index (°F) | 77 | 81 | 83 | 83 | 84 | 84 | 84 | 84 | 82 | 78 | 75 | |||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 3 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 3 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 5 | 4 | 3 | 3 | 3 | 4 | 5 | 6 | 7 | 10 | 12 | 15 | 27 | 39 | 51 | 55 | 59 | 63 | 64 | 65 | 66 | 64 | 61 |
| Precipitation Potential (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 3 | 4 | 14 | 23 | 32 | 38 | 44 | 51 | 50 | 49 | 48 | 47 | 47 |
| Relative Humidity (%) | 78 | 81 | 81 | 81 | 81 | 81 | 78 | 68 | 60 | 54 | 49 | 47 | 44 | 46 | 46 | 49 | 54 | 62 | 71 | 73 | 79 | 81 | 84 | 87 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
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