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| Point Forecast: 3 Miles SSW South Haven MI 42.36N 86.28W (Elev. 604 ft) |
Last Update: 8:04 am EDT Sep 19, 2021 |
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| Date | 09/19 | 09/20 | ||||||||||||||||||||||
| Hour (EDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°F) | 62 | 66 | 70 | 74 | 79 | 81 | 83 | 83 | 83 | 83 | 82 | 81 | 80 | 73 | 71 | 71 | 70 | 69 | 69 | 68 | 68 | 68 | 68 | 67 |
| Dewpoint (°F) | 55 | 57 | 59 | 61 | 62 | 64 | 65 | 65 | 66 | 66 | 66 | 66 | 66 | 66 | 65 | 63 | 63 | 62 | 61 | 60 | 61 | 61 | 61 | 62 |
| Heat Index (°F) | 79 | 83 | 85 | 85 | 85 | 85 | 84 | 83 | 82 | |||||||||||||||
| Surface Wind (mph) | 6 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 3 | 2 | 3 | 2 | 3 | 5 | 6 | 6 | 8 | 9 | 10 | 9 | 8 | 9 | 9 | 8 |
| Wind Dir | ESE | SE | SE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SE | ESE | ESE | SE | SE | SE | SE | SE | SE | SE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 9 | 9 | 14 | 11 | 7 | 3 | 5 | 4 | 6 | 7 | 29 | 39 | 59 | 64 | 58 | 74 | 80 | 77 | 77 | 84 | 77 | 82 | 72 | 79 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 8 | 12 |
| Relative Humidity (%) | 78 | 73 | 68 | 62 | 56 | 56 | 55 | 55 | 57 | 57 | 58 | 60 | 62 | 79 | 81 | 76 | 78 | 78 | 76 | 76 | 78 | 78 | 78 | 84 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/21 | |||||||||||||||||||||||
| Hour (EDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°F) | 68 | 70 | 74 | 75 | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 76 | 75 | 70 | 69 | 68 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 |
| Dewpoint (°F) | 63 | 66 | 67 | 68 | 68 | 68 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 68 | 68 | 67 | 67 | 66 | 66 | 66 | 65 | 65 | 65 | 65 |
| Heat Index (°F) | 75 | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 76 | 75 | ||||||||||||||
| Surface Wind (mph) | 7 | 8 | 10 | 11 | 13 | 14 | 14 | 14 | 13 | 11 | 11 | 11 | 16 | 17 | 18 | 20 | 20 | 20 | 20 | 18 | 18 | 18 | 20 | 20 |
| Wind Dir | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | 18 | 21 | 22 | 23 | 23 | 22 | 22 | 21 | 21 | 22 | 25 | 26 | 29 | 30 | 31 | 31 | 30 | 29 | 29 | 28 | 28 | |||
| Sky Cover (%) | 81 | 70 | 65 | 68 | 77 | 78 | 79 | 76 | 74 | 71 | 67 | 64 | 60 | 60 | 60 | 60 | 62 | 65 | 66 | 69 | 74 | 77 | 78 | 79 |
| Precipitation Potential (%) | 46 | 46 | 46 | 46 | 46 | 46 | 73 | 73 | 73 | 73 | 73 | 73 | 32 | 32 | 32 | 32 | 32 | 32 | 75 | 75 | 75 | 75 | 75 | 75 |
| Relative Humidity (%) | 84 | 87 | 79 | 79 | 76 | 76 | 79 | 79 | 76 | 76 | 76 | 79 | 82 | 93 | 97 | 97 | 97 | 93 | 93 | 93 | 93 | 93 | 93 | 93 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl |
| Thunder | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc |
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