| Point Forecast: Grand Blanc MI 42.91N 83.62W (Elev. 258 m) |
Last Update: 4:24 am EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°C) | 18 | 18 | 18 | 18 | 20 | 22 | 26 | 27 | 28 | 29 | 30 | 31 | 31 | 31 | 31 | 31 | 29 | 27 | 24 | 23 | 22 | 21 | 21 | 21 |
| Dewpoint (°C) | 16 | 16 | 16 | 16 | 17 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
| Heat Index (°C) | 26 | 28 | 29 | 30 | 31 | 32 | 32 | 32 | 31 | 31 | 30 | 27 | 24 | |||||||||||
| Surface Wind (mph) | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 5 | 6 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 3 | 4 | 5 | 6 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 9 | 9 | 8 | 7 | 6 | 5 | 7 | 8 | 10 | 11 | 13 | 14 | 16 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 6 |
| Relative Humidity (%) | 89 | 89 | 91 | 90 | 85 | 79 | 65 | 60 | 55 | 53 | 47 | 46 | 45 | 44 | 43 | 45 | 49 | 56 | 63 | 68 | 72 | 75 | 78 | 81 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°C) | 21 | 21 | 21 | 21 | 23 | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 26 | 25 | 24 | 23 | 23 | 23 | 22 |
| Dewpoint (°C) | 18 | 18 | 18 | 19 | 20 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Heat Index (°C) | 26 | 29 | 31 | 32 | 32 | 32 | 33 | 33 | 33 | 32 | 31 | 31 | 28 | 25 | 24 | |||||||||
| Surface Wind (mph) | 5 | 5 | 3 | 3 | 3 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 5 | 5 | 5 |
| Wind Dir | S | S | SSW | SSW | SSW | SW | SW | SSW | SSW | S | S | S | S | S | S | SSW | SSW | SSW | S | S | S | SSW | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 17 | 19 | 21 | 23 | 24 | 29 | 34 | 38 | 43 | 47 | 52 | 52 | 53 | 53 | 50 | 47 | 44 | 41 | 39 | 36 | 38 | 39 | 41 | 48 |
| Precipitation Potential (%) | 8 | 10 | 10 | 10 | 14 | 17 | 19 | 24 | 24 | 24 | 48 | 48 | 48 | 48 | 48 | 48 | 33 | 33 | 33 | 33 | 33 | 33 | 30 | 30 |
| Relative Humidity (%) | 84 | 87 | 86 | 86 | 85 | 78 | 72 | 67 | 66 | 67 | 64 | 64 | 64 | 65 | 68 | 71 | 74 | 79 | 84 | 89 | 91 | 92 | 93 | 95 |
| Rain | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc |
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