| Point Forecast: 2 Miles W Petersham MA 42.49N 72.21W (Elev. 797 ft) |
Last Update: 2:05 am EDT Jul 14, 2025 |
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| Date | 07/14 | 07/15 | ||||||||||||||||||||||
| 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) | 69 | 69 | 68 | 68 | 68 | 69 | 70 | 73 | 74 | 76 | 78 | 80 | 80 | 80 | 80 | 79 | 78 | 76 | 75 | 72 | 71 | 71 | 70 | 70 |
| Dewpoint (°F) | 67 | 67 | 66 | 66 | 67 | 67 | 68 | 69 | 69 | 70 | 70 | 71 | 72 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 |
| Heat Index (°F) | 76 | 78 | 83 | 84 | 84 | 84 | 79 | 78 | 76 | 75 | ||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 3 | 3 |
| Wind Dir | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | SW | SW | S | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 91 | 93 | 90 | 94 | 88 | 89 | 89 | 80 | 86 | 78 | 73 | 75 | 85 | 76 | 69 | 70 | 80 | 88 | 88 | 80 | 84 | 83 | 89 | 93 |
| Precipitation Potential (%) | 5 | 5 | 5 | 7 | 8 | 10 | 9 | 8 | 10 | 15 | 24 | 39 | 46 | 52 | 54 | 55 | 53 | 49 | 26 | 21 | 17 | 13 | 11 | 9 |
| Relative Humidity (%) | 93 | 93 | 93 | 93 | 97 | 93 | 93 | 87 | 84 | 82 | 76 | 74 | 77 | 77 | 77 | 77 | 79 | 85 | 87 | 97 | 97 | 97 | 100 | 100 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Lkly | Chc | Chc | Chc | SChc | SChc | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- |
| Date | 07/16 | |||||||||||||||||||||||
| 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) | 71 | 70 | 69 | 69 | 68 | 70 | 72 | 75 | 78 | 81 | 83 | 85 | 86 | 87 | 87 | 86 | 84 | 82 | 79 | 77 | 75 | 73 | 72 | 71 |
| Dewpoint (°F) | 70 | 70 | 69 | 69 | 68 | 70 | 70 | 71 | 71 | 70 | 69 | 69 | 68 | 68 | 68 | 68 | 69 | 69 | 70 | 71 | 71 | 71 | 71 | 70 |
| Heat Index (°F) | 75 | 78 | 85 | 87 | 89 | 89 | 90 | 90 | 89 | 88 | 85 | 79 | 77 | 75 | ||||||||||
| Surface Wind (mph) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 2 | 2 | 2 |
| Wind Dir | SW | SW | SW | SW | SW | SW | W | W | W | W | W | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 95 | 96 | 90 | 80 | 71 | 82 | 82 | 52 | 39 | 28 | 28 | 30 | 30 | 33 | 33 | 33 | 28 | 19 | 18 | 17 | 16 | 15 | 26 | 36 |
| Precipitation Potential (%) | 8 | 7 | 8 | 8 | 7 | 6 | 19 | 18 | 17 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 16 | 13 | 11 | 8 | 5 | 3 | 3 | 4 |
| Relative Humidity (%) | 97 | 100 | 100 | 100 | 100 | 100 | 93 | 87 | 78 | 69 | 63 | 58 | 55 | 53 | 53 | 55 | 60 | 66 | 74 | 81 | 88 | 93 | 96 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
