| Point Forecast: Washington DC 38.91N 77.02W (Elev. 22 m) |
Last Update: 1:31 pm EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°C) | 32 | 31 | 30 | 28 | 27 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 27 | 28 | 29 | 31 | 31 | 31 | 31 | 31 | 30 |
| Dewpoint (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 24 |
| Heat Index (°C) | 38 | 37 | 35 | 32 | 30 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 30 | 33 | 34 | 37 | 37 | 38 | 38 | 38 | 36 |
| Surface Wind (mph) | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 6 | 7 | 8 | 9 | 9 | 9 | 9 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 58 | 57 | 51 | 39 | 31 | 41 | 36 | 34 | 56 | 54 | 50 | 50 | 39 | 40 | 55 | 54 | 52 | 65 | 79 | 67 | 69 | 70 | 77 | 77 |
| Precipitation Potential (%) | 33 | 25 | 11 | 4 | 6 | 6 | 4 | 4 | 8 | 6 | 7 | 7 | 8 | 7 | 6 | 9 | 19 | 21 | 29 | 32 | 26 | 33 | 51 | 61 |
| Relative Humidity (%) | 66 | 68 | 70 | 82 | 88 | 88 | 94 | 91 | 94 | 97 | 97 | 97 | 97 | 100 | 94 | 88 | 82 | 75 | 70 | 68 | 70 | 70 | 70 | 72 |
| Rain | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Lkly |
| Thunder | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Lkly |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°C) | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 28 | 29 | 31 | 32 | 33 | 34 | 34 | 34 | 34 |
| Dewpoint (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 |
| Heat Index (°C) | 34 | 33 | 31 | 31 | 31 | 29 | 29 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 30 | 32 | 34 | 37 | 38 | 39 | 39 | 41 | 41 | 39 |
| Surface Wind (mph) | 8 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 |
| Wind Dir | SW | S | S | SW | SW | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 84 | 78 | 77 | 72 | 70 | 67 | 69 | 71 | 73 | 67 | 62 | 56 | 50 | 45 | 39 | 37 | 34 | 32 | 40 | 49 | 57 | 57 | 57 | 57 |
| Precipitation Potential (%) | 67 | 67 | 20 | 20 | 20 | 20 | 20 | 20 | 5 | 5 | 5 | 5 | 5 | 5 | 9 | 9 | 9 | 9 | 9 | 9 | 35 | 35 | 35 | 35 |
| Relative Humidity (%) | 77 | 80 | 82 | 85 | 85 | 85 | 85 | 88 | 88 | 91 | 90 | 90 | 94 | 91 | 88 | 82 | 72 | 66 | 62 | 56 | 54 | 53 | 53 | 54 |
| Rain | Lkly | Lkly | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc |
| Thunder | Lkly | Lkly | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc |
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