| Point Forecast: Marlborough MA 42.36N 71.55W (Elev. 136 m) |
Last Update: 3:59 pm EDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (EDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°C) | 27 | 27 | 27 | 26 | 24 | 23 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 23 | 24 | 25 | 27 | 27 | 28 | 28 |
| Dewpoint (°C) | 20 | 20 | 20 | 19 | 19 | 20 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 22 |
| Heat Index (°C) | 29 | 29 | 28 | 26 | 24 | 24 | 25 | 28 | 29 | 31 | 31 | |||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | SW | S | S | S | S | S | S | S | S | S | SW | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 28 | 32 | 23 | 37 | 50 | 69 | 77 | 90 | 91 | 94 | 92 | 95 | 94 | 95 | 96 | 95 | 95 | 95 | 82 | 75 | 74 | 69 | 65 | 53 |
| Precipitation Potential (%) | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 8 | 7 | 6 | 8 | 9 | 15 | 22 | 29 |
| Relative Humidity (%) | 65 | 65 | 67 | 67 | 74 | 84 | 90 | 90 | 97 | 93 | 97 | 97 | 93 | 93 | 97 | 97 | 93 | 87 | 84 | 79 | 74 | 72 | 72 | 72 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (EDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°C) | 28 | 28 | 27 | 26 | 25 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 26 | 28 | 29 | 29 | 30 | 31 |
| Dewpoint (°C) | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 |
| Heat Index (°C) | 31 | 31 | 29 | 26 | 25 | 24 | 24 | 28 | 31 | 32 | 33 | 33 | 34 | |||||||||||
| Surface Wind (mph) | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 |
| Wind Dir | S | SW | S | SW | SW | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 65 | 59 | 59 | 58 | 62 | 73 | 78 | 82 | 80 | 77 | 75 | 76 | 76 | 77 | 75 | 73 | 71 | 63 | 56 | 48 | 44 | 40 | 36 | 35 |
| Precipitation Potential (%) | 32 | 39 | 38 | 35 | 28 | 27 | 26 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 19 |
| Relative Humidity (%) | 72 | 74 | 74 | 79 | 82 | 90 | 93 | 93 | 96 | 99 | 100 | 100 | 99 | 97 | 97 | 96 | 93 | 87 | 80 | 74 | 69 | 66 | 63 | 61 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc |
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