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| Point Forecast: 3 Miles SSW South Haven MI 42.36N 86.28W (Elev. 604 ft) |
Last Update: 3:03 pm EDT Sep 17, 2021 |
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| Date | 09/17 | 09/18 | ||||||||||||||||||||||
| 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) | 79 | 78 | 77 | 77 | 74 | 72 | 70 | 68 | 67 | 66 | 66 | 65 | 65 | 63 | 62 | 60 | 60 | 63 | 67 | 71 | 73 | 75 | 76 | 76 |
| Dewpoint (°F) | 63 | 62 | 62 | 63 | 63 | 63 | 64 | 64 | 64 | 64 | 63 | 61 | 60 | 60 | 58 | 57 | 56 | 57 | 56 | 55 | 55 | 55 | 55 | 55 |
| Heat Index (°F) | 79 | 78 | 77 | 77 | 75 | 76 | 76 | |||||||||||||||||
| Surface Wind (mph) | 10 | 9 | 8 | 8 | 6 | 2 | 6 | 9 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 9 | 7 | 7 | 8 |
| Wind Dir | SW | SW | SW | SSW | SSW | W | NNW | N | N | N | N | NNE | NNE | NE | NE | NE | NE | ENE | ENE | ENE | ENE | NE | NNE | N |
| Gust | 18 | |||||||||||||||||||||||
| Sky Cover (%) | 5 | 5 | 12 | 20 | 48 | 50 | 73 | 75 | 76 | 71 | 73 | 66 | 66 | 65 | 60 | 52 | 51 | 31 | 20 | 20 | 7 | 13 | 12 | 4 |
| Precipitation Potential (%) | 1 | 0 | 5 | 9 | 29 | 29 | 29 | 18 | 18 | 18 | 20 | 20 | 20 | 17 | 17 | 17 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 |
| Relative Humidity (%) | 58 | 58 | 60 | 62 | 69 | 73 | 81 | 87 | 90 | 93 | 90 | 87 | 84 | 90 | 87 | 90 | 87 | 81 | 68 | 57 | 53 | 50 | 48 | 48 |
| Rain | -- | -- | -- | -- | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/19 | |||||||||||||||||||||||
| 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) | 77 | 77 | 75 | 73 | 70 | 67 | 65 | 63 | 62 | 61 | 61 | 60 | 60 | 59 | 57 | 57 | 58 | 63 | 68 | 72 | 75 | 78 | 79 | 80 |
| Dewpoint (°F) | 55 | 55 | 56 | 56 | 55 | 54 | 53 | 53 | 53 | 52 | 52 | 52 | 53 | 53 | 53 | 54 | 54 | 56 | 58 | 60 | 61 | 62 | 62 | 63 |
| Heat Index (°F) | 77 | 77 | 75 | 75 | 78 | 79 | 81 | |||||||||||||||||
| Surface Wind (mph) | 9 | 10 | 10 | 9 | 8 | 7 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 6 |
| Wind Dir | N | N | N | N | NNE | NE | ENE | E | E | ESE | ESE | ESE | ESE | ESE | ESE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 3 | 4 | 2 | 2 | 5 | 2 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | 6 | 6 | 6 | 6 | 6 | 7 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 47 | 47 | 52 | 55 | 59 | 63 | 65 | 70 | 72 | 72 | 72 | 75 | 78 | 80 | 86 | 90 | 86 | 78 | 70 | 66 | 62 | 58 | 56 | 56 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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