| Point Forecast: Harsens Island MI 42.58N 82.57W (Elev. 577 ft) |
Last Update: 5:13 pm EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 79 | 76 | 73 | 72 | 71 | 71 | 71 | 71 | 70 | 70 | 71 | 75 | 78 | 80 | 81 | 82 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 80 |
| Dewpoint (°F) | 64 | 64 | 64 | 65 | 66 | 66 | 67 | 67 | 67 | 67 | 68 | 70 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 |
| Heat Index (°F) | 79 | 76 | 75 | 79 | 84 | 86 | 87 | 89 | 88 | 88 | 89 | 89 | 88 | 86 | 84 | |||||||||
| Surface Wind (mph) | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 6 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 6 |
| Wind Dir | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | S | SSE | S | S | S | S | S | S | S | S | S | S | S | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 11 | 10 | 12 | 15 | 19 | 38 | 38 | 39 | 48 | 48 | 51 | 51 | 53 | 53 | 50 | 55 | 55 | 47 | 44 | 37 | 44 | 45 | 27 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 3 | 6 | 8 | 10 | 10 | 10 | 19 | 23 | 25 | 31 | 31 | 31 | 29 | 29 | 29 | 29 | 29 | 29 | 30 |
| Relative Humidity (%) | 60 | 67 | 73 | 79 | 82 | 86 | 87 | 87 | 90 | 91 | 91 | 85 | 78 | 76 | 75 | 72 | 70 | 70 | 70 | 69 | 69 | 70 | 74 | 78 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 79 | 77 | 77 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 82 | 82 | 80 | 78 | 75 | 72 |
| Dewpoint (°F) | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 71 | 71 | 71 | 70 | 68 | 67 | 65 |
| Heat Index (°F) | 79 | 77 | 77 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 75 | 76 | 77 | 78 | 83 | 84 | 86 | 86 | 87 | 86 | 84 | 78 | 75 | |
| Surface Wind (mph) | 5 | 3 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 9 |
| Wind Dir | S | S | S | SSW | SSW | SSW | SW | SW | SW | SW | WSW | WSW | WSW | W | W | W | W | W | WNW | NW | NW | NNW | N | N |
| Gust | 18 | 18 | 18 | 20 | 20 | 20 | 18 | |||||||||||||||||
| Sky Cover (%) | 38 | 26 | 30 | 33 | 31 | 28 | 33 | 38 | 43 | 48 | 52 | 57 | 58 | 58 | 59 | 59 | 59 | 59 | 57 | 55 | 53 | 60 | 67 | 74 |
| Precipitation Potential (%) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 47 | 47 | 47 | 47 | 47 | 47 | 65 | 65 | 65 | 65 | 65 | 65 | 17 |
| Relative Humidity (%) | 81 | 85 | 86 | 89 | 91 | 94 | 94 | 94 | 94 | 93 | 92 | 90 | 87 | 82 | 78 | 75 | 72 | 71 | 70 | 70 | 71 | 73 | 76 | 79 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | SChc |
| Thunder | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | SChc | SChc | SChc | -- |
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