| Point Forecast: Merrimack NH 42.86N 71.49W (Elev. 36 m) |
Last Update: 8:11 pm EDT Jul 13, 2025 |
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| Date | 07/14 | 07/15 | ||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°C) | 21 | 21 | 21 | 21 | 20 | 20 | 21 | 22 | 23 | 24 | 27 | 27 | 28 | 29 | 29 | 29 | 28 | 28 | 27 | 25 | 24 | 23 | 23 | 22 |
| Dewpoint (°C) | 20 | 19 | 19 | 19 | 19 | 19 | 20 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 |
| Heat Index (°C) | 24 | 29 | 30 | 31 | 32 | 33 | 34 | 32 | 31 | 29 | 25 | 24 | ||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 5 | 5 | 6 | 6 | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | S | S | S | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 57 | 69 | 74 | 73 | 71 | 72 | 66 | 68 | 69 | 70 | 70 | 71 | 71 | 72 | 74 | 86 | 90 | 89 | 69 | 75 | 74 | 76 | 78 | 76 |
| Precipitation Potential (%) | 4 | 5 | 5 | 6 | 7 | 6 | 7 | 5 | 4 | 7 | 9 | 11 | 19 | 26 | 44 | 57 | 60 | 56 | 38 | 24 | 24 | 24 | 24 | 24 |
| Relative Humidity (%) | 93 | 93 | 93 | 93 | 97 | 97 | 93 | 90 | 87 | 85 | 77 | 77 | 74 | 70 | 72 | 70 | 74 | 77 | 82 | 87 | 94 | 97 | 97 | 97 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Lkly | Lkly | Lkly | Chc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- |
| Date | 07/16 | |||||||||||||||||||||||
| Hour (EDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°C) | 22 | 22 | 22 | 21 | 21 | 22 | 23 | 23 | 25 | 27 | 29 | 29 | 31 | 31 | 31 | 32 | 32 | 31 | 29 | 28 | 27 | 26 | 24 | 23 |
| Dewpoint (°C) | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Heat Index (°C) | 25 | 30 | 32 | 33 | 34 | 35 | 35 | 35 | 35 | 34 | 33 | 31 | 29 | 26 | 24 | |||||||||
| Surface Wind (mph) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Wind Dir | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | W | SW | SW | SW | SW | SW | S | S | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 74 | 72 | 70 | 69 | 67 | 61 | 55 | 49 | 43 | 36 | 29 | 27 | 25 | 23 | 20 | 18 | 16 | 15 | 13 | 11 | 11 | 11 | 11 | 12 |
| Precipitation Potential (%) | 24 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 97 | 97 | 97 | 97 | 97 | 97 | 93 | 93 | 85 | 77 | 70 | 67 | 61 | 59 | 59 | 56 | 56 | 59 | 65 | 70 | 77 | 79 | 87 | 90 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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