| Point Forecast: 2 Miles SSE Marietta, Cobb County-McCollum Field Airport GA 33.99N 84.57W (Elev. 344 m) |
Last Update: 2:06 am EDT May 21, 2025 |
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| Date | 05/21 | 05/22 | ||||||||||||||||||||||
| 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 | 20 | 20 | 19 | 20 | 21 | 22 | 23 | 24 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 23 | 22 | 20 | 19 | 18 | 18 | 17 | 17 |
| Dewpoint (°C) | 20 | 19 | 20 | 19 | 20 | 19 | 19 | 18 | 17 | 15 | 14 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Heat Index (°C) | 24 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | ||||||||||||||||
| Surface Wind (mph) | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 13 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 13 | 11 | 9 | 9 | 8 | 7 | 7 | 6 | 6 |
| Wind Dir | SW | SW | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | W | W | W | W | W | W | W | W |
| Gust | 24 | 24 | 24 | |||||||||||||||||||||
| Sky Cover (%) | 49 | 41 | 49 | 62 | 59 | 49 | 26 | 13 | 9 | 6 | 3 | 3 | 3 | 3 | 6 | 10 | 11 | 8 | 7 | 12 | 11 | 10 | 16 | 9 |
| Precipitation Potential (%) | 16 | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 97 | 96 | 99 | 100 | 99 | 91 | 81 | 72 | 63 | 52 | 46 | 41 | 39 | 39 | 40 | 42 | 49 | 56 | 61 | 64 | 66 | 68 | 71 | 75 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/23 | |||||||||||||||||||||||
| 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) | 17 | 16 | 16 | 16 | 17 | 18 | 20 | 22 | 24 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 24 | 22 | 21 | 19 | 18 | 17 | 17 | 16 |
| Dewpoint (°C) | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 12 | 12 |
| Heat Index (°C) | 24 | 25 | 27 | 27 | 27 | 27 | 27 | 26 | 24 | |||||||||||||||
| Surface Wind (mph) | 6 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 14 | 15 | 15 | 15 | 15 | 14 | 13 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW |
| Gust | 24 | 24 | ||||||||||||||||||||||
| Sky Cover (%) | 11 | 7 | 15 | 8 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 8 | 8 | 9 | 11 | 13 | 15 | 18 | 19 | 16 | 12 | 9 | 9 |
| Precipitation Potential (%) | 1 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 1 | 1 |
| Relative Humidity (%) | 75 | 78 | 82 | 81 | 79 | 76 | 67 | 58 | 52 | 48 | 44 | 41 | 39 | 38 | 41 | 45 | 50 | 58 | 65 | 70 | 73 | 74 | 75 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
