| Point Forecast: Louisville TN 35.83N 84.04W (Elev. 263 m) |
Last Update: 1:06 am EDT Sep 8, 2026 |
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| Date | 09/08 | 09/09 | ||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°C) | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 21 | 24 | 26 | 28 | 29 | 30 | 31 | 31 | 32 | 30 | 29 | 28 | 25 | 24 | 24 | 23 | 22 |
| Dewpoint (°C) | 20 | 20 | 19 | 19 | 19 | 18 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 18 |
| Heat Index (°C) | 24 | 26 | 30 | 31 | 33 | 33 | 34 | 34 | 33 | 32 | 29 | 25 | 24 | 24 | ||||||||||
| Surface Wind (mph) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | NE | NE | NE | NE | NE | NE | NE | N | N | N | N | N | N | NE | NE | NE | NE | E | S | S | SE | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 26 | 25 | 21 | 21 | 25 | 30 | 22 | 19 | 13 | 11 | 9 | 14 | 18 | 19 | 18 | 15 | 29 | 28 | 29 | 19 | 14 | 29 | 16 | 17 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 90 | 93 | 97 | 93 | 97 | 97 | 97 | 97 | 79 | 72 | 67 | 63 | 59 | 57 | 55 | 52 | 59 | 61 | 65 | 74 | 76 | 76 | 79 | 79 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/10 | |||||||||||||||||||||||
| Hour (EDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°C) | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 21 | 24 | 27 | 28 | 29 | 31 | 32 | 32 | 32 | 32 | 30 | 28 | 27 | 25 | 24 | 23 | 23 |
| Dewpoint (°C) | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 19 | 19 |
| Heat Index (°C) | 24 | 28 | 31 | 32 | 33 | 34 | 35 | 35 | 34 | 32 | 30 | 28 | 25 | 24 | ||||||||||
| Surface Wind (mph) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 3 | 2 |
| Wind Dir | SW | SW | SW | W | N | N | E | N | N | N | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 22 | 20 | 13 | 21 | 16 | 20 | 15 | 1 | 5 | 8 | 10 | 12 | 14 | 11 | 8 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 11 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 81 | 81 | 87 | 84 | 87 | 90 | 93 | 84 | 76 | 67 | 63 | 59 | 55 | 52 | 50 | 50 | 52 | 55 | 61 | 67 | 74 | 79 | 79 | 81 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
