


Point Forecast: Fort Gratiot MI 43.08N 82.5W (Elev. 623 ft) |
Last Update: 4:24 pm EDT May 20, 2025 |
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Date | 05/20 | 05/21 | ||||||||||||||||||||||
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) | 51 | 51 | 51 | 50 | 49 | 48 | 49 | 49 | 48 | 49 | 48 | 49 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 52 | 50 | 51 | 51 | 50 |
Dewpoint (°F) | 40 | 40 | 40 | 41 | 42 | 43 | 43 | 43 | 43 | 44 | 44 | 45 | 45 | 46 | 47 | 47 | 47 | 47 | 48 | 48 | 47 | 47 | 47 | 47 |
Heat Index (°F) | ||||||||||||||||||||||||
Surface Wind (mph) | 8 | 10 | 10 | 9 | 10 | 13 | 15 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 11 | 13 | 13 | 14 | 14 | 13 | 13 | 11 | 10 |
Wind Dir | E | E | E | E | E | E | E | E | E | E | E | E | E | E | ENE | ENE | NE | NE | NE | NE | NNE | NNE | NNE | NNE |
Gust | 18 | 20 | 18 | 21 | 25 | 28 | 29 | 28 | 26 | 25 | 25 | 23 | 23 | 23 | 21 | 22 | 21 | 22 | 20 | 20 | 18 | 18 | ||
Sky Cover (%) | 93 | 93 | 94 | 94 | 95 | 95 | 95 | 95 | 94 | 94 | 94 | 94 | 94 | 95 | 95 | 96 | 96 | 97 | 95 | 94 | 92 | 91 | 89 | 88 |
Precipitation Potential (%) | 41 | 41 | 41 | 41 | 41 | 69 | 69 | 69 | 69 | 69 | 69 | 84 | 84 | 84 | 84 | 84 | 84 | 79 | 79 | 79 | 79 | 79 | 79 | 51 |
Relative Humidity (%) | 64 | 65 | 67 | 73 | 77 | 81 | 79 | 81 | 83 | 84 | 85 | 87 | 85 | 85 | 86 | 87 | 87 | 88 | 88 | 86 | 89 | 88 | 88 | 89 |
Rain | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Chc |
Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Date | 05/22 | |||||||||||||||||||||||
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) | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 47 | 48 | 48 | 48 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 48 | 48 |
Dewpoint (°F) | 47 | 47 | 46 | 47 | 47 | 46 | 46 | 46 | 46 | 46 | 45 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 45 | 45 | 44 | 44 | 44 | 44 |
Heat Index (°F) | ||||||||||||||||||||||||
Surface Wind (mph) | 10 | 10 | 9 | 9 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 11 | 13 | 13 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 15 | 14 | 13 |
Wind Dir | NNE | NNE | N | N | N | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW | NNW |
Gust | 18 | 18 | 20 | 20 | 21 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 22 | 21 | ||||||||||
Sky Cover (%) | 89 | 90 | 92 | 93 | 94 | 95 | 94 | 94 | 93 | 92 | 92 | 91 | 84 | 86 | 87 | 87 | 87 | 87 | 86 | 84 | 83 | 83 | 84 | 84 |
Precipitation Potential (%) | 51 | 51 | 51 | 51 | 51 | 49 | 49 | 49 | 49 | 49 | 49 | 58 | 58 | 58 | 58 | 58 | 58 | 52 | 52 | 52 | 52 | 52 | 52 | 28 |
Relative Humidity (%) | 91 | 91 | 91 | 92 | 92 | 93 | 93 | 93 | 94 | 92 | 90 | 91 | 91 | 90 | 88 | 87 | 85 | 83 | 83 | 83 | 82 | 84 | 84 | 86 |
Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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