| Point Forecast: Ann Arbor MI 42.27N 83.73W (Elev. 261 m) |
Last Update: 4:24 pm EDT Sep 8, 2026 |
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| Date | 09/08 | 09/09 | ||||||||||||||||||||||
| Hour (EDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°C) | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 24 | 26 | 27 | 27 | 27 | 28 | 27 | 26 | 26 | 24 | 23 | 23 | 22 |
| Dewpoint (°C) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 21 |
| Heat Index (°C) | 24 | 26 | 28 | 29 | 29 | 31 | 28 | 26 | 26 | 24 | ||||||||||||||
| Surface Wind (mph) | 5 | 3 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 11 | 10 | 9 | 8 | 7 |
| Wind Dir | SSE | SSE | S | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 56 | 60 | 65 | 66 | 70 | 76 | 80 | 68 | 74 | 73 | 70 | 58 | 65 | 71 | 84 | 95 | 90 | 84 | 72 | 71 | 61 | 51 | 40 | 44 |
| Precipitation Potential (%) | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 3 | 7 | 8 | 8 | 19 | 22 | 37 | 57 | 46 | 30 | 20 | 17 | 10 | 5 | 2 | 0 |
| Relative Humidity (%) | 91 | 94 | 94 | 94 | 93 | 91 | 91 | 92 | 91 | 90 | 86 | 82 | 78 | 74 | 72 | 74 | 73 | 80 | 84 | 83 | 87 | 89 | 91 | 95 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Lkly | Chc | Chc | SChc | SChc | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- |
| Date | 09/10 | |||||||||||||||||||||||
| Hour (EDT) | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| Temperature (°C) | 21 | 21 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 22 | 21 | 19 | 18 |
| Dewpoint (°C) | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 |
| Heat Index (°C) | 24 | 24 | 24 | 24 | ||||||||||||||||||||
| Surface Wind (mph) | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 8 | 6 | 5 | 3 | 3 |
| Wind Dir | W | W | W | WNW | WNW | WNW | WNW | WNW | WNW | NW | NNW | N | N | NNW | NW | NW | NW | NW | NW | NNW | NNW | NNW | NNW | N |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 54 | 65 | 45 | 55 | 34 | 31 | 47 | 52 | 68 | 82 | 39 | 60 | 81 | 78 | 74 | 71 | 67 | 63 | 59 | 48 | 37 | 26 | 21 | 16 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Relative Humidity (%) | 95 | 97 | 98 | 98 | 98 | 98 | 99 | 99 | 98 | 99 | 96 | 89 | 81 | 75 | 70 | 66 | 63 | 62 | 63 | 65 | 69 | 73 | 77 | 81 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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