| Point Forecast: Portland ME 43.66N 70.27W (Elev. 7 ft) |
Last Update: 10:57 pm EDT Jun 18, 2024 |
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| Date | 06/19 | 06/20 | ||||||||||||||||||||||
| 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) | 67 | 67 | 67 | 67 | 69 | 72 | 75 | 76 | 79 | 81 | 83 | 84 | 84 | 85 | 86 | 87 | 84 | 83 | 81 | 79 | 78 | 76 | 75 | 75 |
| Dewpoint (°F) | 63 | 64 | 64 | 64 | 64 | 66 | 67 | 67 | 67 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 68 | 67 | 67 | 67 | 67 | 67 |
| Heat Index (°F) | 75 | 76 | 79 | 84 | 86 | 87 | 87 | 88 | 89 | 90 | 87 | 86 | 84 | 79 | 78 | 76 | 75 | 75 | ||||||
| Surface Wind (mph) | 2 | 3 | 3 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 10 | 11 | 14 | 13 | 13 | 13 | 11 | 8 | 7 | 9 | 8 | 7 | 7 | 6 |
| Wind Dir | SW | S | S | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW |
| Gust | 20 | |||||||||||||||||||||||
| Sky Cover (%) | 30 | 30 | 27 | 29 | 28 | 19 | 16 | 16 | 17 | 21 | 21 | 29 | 38 | 46 | 41 | 42 | 47 | 56 | 57 | 56 | 56 | 56 | 55 | 54 |
| Precipitation Potential (%) | 2 | 3 | 3 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 4 | 7 | 11 | 15 | 19 | 23 | 27 | 31 | 35 | 26 | 17 | 8 | 6 | 4 |
| Relative Humidity (%) | 87 | 90 | 90 | 90 | 84 | 81 | 76 | 74 | 67 | 65 | 61 | 59 | 59 | 55 | 53 | 52 | 57 | 59 | 65 | 67 | 69 | 74 | 76 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- |
| Date | 06/21 | |||||||||||||||||||||||
| 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) | 74 | 73 | 72 | 72 | 71 | 74 | 76 | 78 | 81 | 83 | 84 | 85 | 86 | 87 | 88 | 85 | 82 | 81 | 79 | 77 | 76 | 75 | 74 | 73 |
| Dewpoint (°F) | 67 | 67 | 67 | 67 | 67 | 66 | 69 | 69 | 69 | 70 | 70 | 69 | 69 | 69 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | 69 | 69 | 68 |
| Heat Index (°F) | 76 | 78 | 84 | 87 | 88 | 89 | 90 | 91 | 92 | 88 | 85 | 84 | 79 | 77 | 76 | 75 | ||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 5 | 5 | 3 | 3 | 3 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 53 | 52 | 52 | 51 | 47 | 43 | 47 | 51 | 54 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 66 | 72 | 78 | 75 | 72 | 69 | 69 | 68 |
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 |
| Relative Humidity (%) | 79 | 81 | 84 | 84 | 87 | 76 | 79 | 74 | 67 | 65 | 63 | 59 | 57 | 55 | 52 | 57 | 63 | 67 | 72 | 76 | 79 | 82 | 84 | 84 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
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