| Point Forecast: West Groton MA 42.59N 71.64W (Elev. 315 ft) |
Last Update: 1:23 pm EDT Sep 11, 2026 |
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| Date | 09/11 | 09/12 | ||||||||||||||||||||||
| Hour (EDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 72 | 74 | 76 | 74 | 74 | 72 | 67 | 62 | 59 | 58 | 55 | 54 | 52 | 51 | 51 | 50 | 49 | 49 | 49 | 53 | 58 | 63 | 67 | 69 |
| Dewpoint (°F) | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 51 | 51 | 51 | 50 | 49 | 48 | 47 | 47 | 46 | 46 | 47 | 49 | 52 | 53 | 54 | 54 |
| Heat Index (°F) | 76 | |||||||||||||||||||||||
| Surface Wind (mph) | 7 | 9 | 9 | 8 | 8 | 6 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 3 | 3 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | W | W | NW | N | E | SE | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 5 | 4 | 4 | 3 | 3 | 1 | 0 | 2 | 2 | 3 | 2 | 0 | 1 | 1 | 2 | 1 | 2 | 3 | 0 | 2 | 0 | 1 | 3 | 8 |
| 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 (%) | 51 | 48 | 45 | 47 | 49 | 52 | 61 | 70 | 75 | 77 | 86 | 86 | 89 | 89 | 86 | 89 | 89 | 89 | 93 | 86 | 80 | 70 | 63 | 59 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/13 | |||||||||||||||||||||||
| Hour (EDT) | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |
| Temperature (°F) | 72 | 75 | 75 | 75 | 76 | 73 | 70 | 67 | 63 | 62 | 61 | 61 | 60 | 59 | 60 | 60 | 60 | 60 | 60 | 62 | 64 | 66 | 68 | 69 |
| Dewpoint (°F) | 55 | 56 | 56 | 57 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 60 | 62 | 64 | 66 | 68 | 69 |
| Heat Index (°F) | 75 | 75 | 75 | 76 | ||||||||||||||||||||
| Surface Wind (mph) | 3 | 5 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 5 | 5 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 41 | 56 | 50 | 59 | 60 | 51 | 39 | 45 | 37 | 48 | 53 | 49 | 57 | 60 | 76 | 86 | 95 | 84 | 90 | 94 | 90 | 90 | 91 | 91 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 4 | 19 | 27 | 31 | 33 | 47 | 61 | 80 | 80 | 80 | 80 | 64 |
| Relative Humidity (%) | 55 | 52 | 51 | 54 | 54 | 59 | 66 | 72 | 84 | 87 | 88 | 91 | 94 | 95 | 94 | 97 | 97 | 96 | 100 | 100 | 100 | 100 | 100 | 98 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
