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| Point Forecast: 3 Miles S Alpharetta GA 34.02N 84.27W (Elev. 335 m) |
Last Update: 2:10 pm EDT May 18, 2022 |
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| Date | 05/18 | 05/19 | ||||||||||||||||||||||
| Hour (EDT) | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 |
| Temperature (°C) | 31 | 31 | 31 | 31 | 31 | 29 | 27 | 25 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 24 | 27 | 28 | 30 | 32 | 32 |
| Dewpoint (°C) | 11 | 11 | 11 | 11 | 11 | 12 | 13 | 13 | 14 | 14 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 17 |
| Heat Index (°C) | 29 | 29 | 30 | 29 | 29 | 28 | 27 | 25 | 24 | 24 | 28 | 30 | 31 | 32 | 33 | |||||||||
| Surface Wind (mph) | 8 | 9 | 9 | 9 | 9 | 7 | 6 | 5 | 5 | 5 | 5 | 6 | 5 | 5 | 5 | 6 | 5 | 6 | 8 | 11 | 11 | 11 | 11 | 11 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | SW | SW | W | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 6 | 10 | 11 | 14 | 27 | 27 | 25 | 21 | 30 | 16 | 24 | 31 | 32 | 29 | 20 | 21 | 31 | 24 | 12 | 15 | 15 | 17 | 23 | 17 |
| Precipitation Potential (%) | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 3 | 3 | 3 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 5 |
| Relative Humidity (%) | 29 | 28 | 28 | 29 | 29 | 35 | 42 | 49 | 53 | 59 | 62 | 68 | 72 | 74 | 76 | 80 | 83 | 80 | 73 | 66 | 59 | 51 | 44 | 41 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/20 | |||||||||||||||||||||||
| Hour (EDT) | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 |
| Temperature (°C) | 33 | 33 | 33 | 33 | 32 | 31 | 28 | 27 | 26 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 24 | 26 | 28 | 30 | 31 | 32 |
| Dewpoint (°C) | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 15 |
| Heat Index (°C) | 33 | 33 | 33 | 33 | 32 | 31 | 29 | 28 | 26 | 24 | 24 | 24 | 27 | 29 | 30 | 31 | 32 | |||||||
| Surface Wind (mph) | 13 | 13 | 10 | 10 | 9 | 9 | 8 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 10 |
| Wind Dir | W | W | W | SW | W | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 27 | 19 | 30 | 20 | 22 | 21 | 17 | 10 | 6 | 7 | 9 | 10 | 10 | 10 | 10 | 9 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 11 |
| Precipitation Potential (%) | 10 | 8 | 10 | 10 | 12 | 9 | 6 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Relative Humidity (%) | 38 | 37 | 36 | 36 | 37 | 42 | 47 | 52 | 57 | 62 | 65 | 68 | 73 | 77 | 79 | 80 | 79 | 79 | 69 | 59 | 51 | 44 | 39 | 35 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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