| Point Forecast: Marlborough MA 42.36N 71.55W (Elev. 446 ft) |
Last Update: 6:05 pm EDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (EDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 70 | 69 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 70 | 73 | 75 | 77 | 80 | 81 | 82 | 82 | 82 | 82 | 81 | 79 | 77 | 75 | 74 |
| Dewpoint (°F) | 67 | 68 | 67 | 67 | 67 | 66 | 66 | 67 | 67 | 68 | 69 | 70 | 70 | 71 | 71 | 72 | 72 | 72 | 73 | 72 | 72 | 71 | 72 | 72 |
| Heat Index (°F) | 75 | 77 | 83 | 85 | 87 | 87 | 87 | 87 | 85 | 79 | 77 | 75 | ||||||||||||
| Surface Wind (mph) | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 5 | 5 | 5 |
| Wind Dir | S | S | S | S | S | SW | S | S | S | S | S | S | S | S | S | SW | S | S | SW | S | SW | SW | S | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 89 | 90 | 93 | 92 | 94 | 93 | 95 | 96 | 95 | 91 | 91 | 83 | 77 | 76 | 73 | 68 | 59 | 64 | 59 | 58 | 59 | 67 | 76 | 81 |
| Precipitation Potential (%) | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 7 | 8 | 7 | 7 | 6 | 13 | 20 | 27 | 32 | 36 | 40 | 38 | 35 | 33 | 30 | 28 |
| Relative Humidity (%) | 90 | 97 | 93 | 97 | 97 | 93 | 93 | 97 | 97 | 93 | 87 | 84 | 79 | 74 | 72 | 72 | 72 | 72 | 74 | 74 | 79 | 82 | 90 | 93 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (EDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°F) | 73 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 72 | 74 | 76 | 79 | 82 | 84 | 85 | 86 | 87 | 87 | 86 | 85 | 83 | 81 | 79 | 76 |
| Dewpoint (°F) | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 71 | 71 | 72 | 72 | 73 | 73 | 73 | 72 | 72 | 72 | 71 | 71 | 71 | 72 | 72 | 72 | 72 |
| Heat Index (°F) | 76 | 83 | 87 | 90 | 91 | 92 | 93 | 93 | 91 | 90 | 88 | 85 | 79 | 76 | ||||||||||
| Surface Wind (mph) | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 5 | 5 | 5 | 3 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 83 | 81 | 79 | 78 | 78 | 79 | 79 | 77 | 74 | 72 | 63 | 56 | 48 | 44 | 40 | 36 | 35 | 35 | 35 | 28 | 26 | 24 | 23 | 23 |
| Precipitation Potential (%) | 25 | 23 | 20 | 18 | 19 | 20 | 20 | 20 | 20 | 19 | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 16 | 14 | 11 | 9 | 6 |
| Relative Humidity (%) | 93 | 96 | 99 | 100 | 100 | 99 | 97 | 97 | 96 | 93 | 87 | 80 | 74 | 69 | 66 | 63 | 61 | 61 | 61 | 64 | 69 | 74 | 80 | 87 |
| Rain | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- |
