| Point Forecast: 5 Miles SSW Marietta, Cobb County-McCollum Field Airport GA 33.95N 84.63W (Elev. 305 m) |
Last Update: 2:51 pm EDT Jul 13, 2025 |
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| Date | 07/13 | 07/14 | ||||||||||||||||||||||
| Hour (EDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°C) | 32 | 32 | 31 | 29 | 27 | 26 | 26 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 23 | 26 | 28 | 29 | 31 | 32 | 33 | 33 | 33 |
| Dewpoint (°C) | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 |
| Heat Index (°C) | 35 | 35 | 34 | 32 | 29 | 26 | 26 | 24 | 24 | 26 | 31 | 33 | 35 | 37 | 37 | 37 | 37 | |||||||
| Surface Wind (mph) | 7 | 7 | 7 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 6 | 6 | 6 | 6 | 7 |
| Wind Dir | NW | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 37 | 35 | 30 | 29 | 24 | 20 | 17 | 14 | 13 | 11 | 10 | 12 | 14 | 13 | 16 | 16 | 13 | 10 | 7 | 8 | 11 | 16 | 11 | 12 |
| Precipitation Potential (%) | 15 | 13 | 14 | 4 | 3 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 10 | 10 | 10 | 10 | 11 | 14 | 15 | 17 |
| Relative Humidity (%) | 55 | 54 | 58 | 65 | 72 | 78 | 81 | 85 | 88 | 90 | 91 | 94 | 93 | 95 | 98 | 91 | 84 | 74 | 66 | 62 | 59 | 54 | 54 | 52 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc |
| Date | 07/15 | |||||||||||||||||||||||
| Hour (EDT) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°C) | 33 | 32 | 31 | 30 | 28 | 27 | 26 | 26 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 26 | 28 | 30 | 32 | 33 | 33 | 33 | 33 |
| Dewpoint (°C) | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 22 |
| Heat Index (°C) | 36 | 36 | 34 | 33 | 31 | 29 | 28 | 26 | 25 | 24 | 24 | 26 | 31 | 34 | 37 | 38 | 38 | 38 | 37 | |||||
| Surface Wind (mph) | 7 | 7 | 7 | 6 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 5 |
| Wind Dir | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | N | N | N | N | N | N | NE | NE | NE | NE | N | N | NE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 17 | 12 | 10 | 15 | 11 | 11 | 13 | 11 | 10 | 12 | 10 | 11 | 10 | 11 | 10 | 9 | 9 | 9 | 9 | 17 | 24 | 32 | 35 | 38 |
| Precipitation Potential (%) | 15 | 15 | 15 | 10 | 10 | 10 | 10 | 10 | 10 | 2 | 2 | 2 | 2 | 2 | 2 | 7 | 7 | 7 | 7 | 7 | 7 | 46 | 46 | 46 |
| Relative Humidity (%) | 52 | 52 | 56 | 62 | 68 | 74 | 78 | 82 | 85 | 87 | 89 | 91 | 91 | 92 | 92 | 89 | 82 | 74 | 67 | 61 | 57 | 54 | 53 | 53 |
| Rain | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc |
| Thunder | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc |
