| Point Forecast: 2 Miles W Isle Royale National Park MI 48.12N 88.65W (Elev. 699 ft) |
Last Update: 3:57 pm EDT May 18, 2024 |
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| Date | 05/18 | 05/19 | ||||||||||||||||||||||
| 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 (°F) | 62 | 63 | 63 | 62 | 56 | 54 | 53 | 52 | 51 | 51 | 51 | 51 | 50 | 50 | 49 | 50 | 51 | 54 | 57 | 60 | 61 | 62 | 62 | 63 |
| Dewpoint (°F) | 45 | 44 | 45 | 46 | 46 | 46 | 46 | 45 | 43 | 42 | 41 | 40 | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 13 | 13 | 13 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 16 |
| Wind Dir | SE | SE | S | S | S | SW | SW | SW | W | W | W | W | W | W | W | W | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | 18 | 18 | 18 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 24 | 25 | 25 | |||||||||
| Sky Cover (%) | 41 | 57 | 69 | 67 | 75 | 70 | 65 | 45 | 20 | 19 | 5 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 11 | 16 | 19 |
| Precipitation Potential (%) | 15 | 37 | 58 | 62 | 21 | 24 | 26 | 12 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 52 | 50 | 53 | 57 | 69 | 73 | 77 | 78 | 74 | 70 | 67 | 67 | 65 | 65 | 65 | 64 | 61 | 55 | 48 | 42 | 40 | 39 | 38 | 37 |
| Rain | SChc | Chc | Lkly | Lkly | SChc | SChc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | Chc | Lkly | Lkly | SChc | SChc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/20 | |||||||||||||||||||||||
| 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 (°F) | 65 | 66 | 66 | 66 | 65 | 63 | 60 | 58 | 56 | 55 | 54 | 53 | 52 | 51 | 51 | 50 | 50 | 48 | 47 | 47 | 48 | 49 | 50 | 49 |
| Dewpoint (°F) | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 37 | 38 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 16 | 16 | 15 | 14 | 13 | 11 | 10 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 10 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | W | SW | SW | SW | SW | SW | S | S | SE | SE | SE | E | E | E | E | E | E |
| Gust | 25 | 25 | 24 | 22 | 21 | 18 | ||||||||||||||||||
| Sky Cover (%) | 22 | 25 | 25 | 26 | 26 | 31 | 37 | 42 | 43 | 44 | 45 | 48 | 52 | 55 | 64 | 73 | 82 | 82 | 81 | 81 | 81 | 80 | 80 | 77 |
| Precipitation Potential (%) | 0 | 0 | 0 | 1 | 2 | 3 | 5 | 6 | 8 | 9 | 10 | 11 | 11 | 12 | 12 | 12 | 24 | 31 | 34 | 36 | 36 | 36 | 22 | 22 |
| Relative Humidity (%) | 35 | 34 | 33 | 33 | 34 | 37 | 41 | 45 | 48 | 50 | 52 | 54 | 56 | 58 | 61 | 64 | 68 | 72 | 76 | 78 | 75 | 72 | 70 | 72 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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