| Point Forecast: Washington DC 38.91N 77.05W (Elev. 89 ft) |
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 (°F) | 89 | 88 | 85 | 82 | 80 | 79 | 78 | 78 | 77 | 76 | 75 | 75 | 75 | 75 | 78 | 80 | 83 | 85 | 87 | 88 | 88 | 88 | 88 | 86 |
| Dewpoint (°F) | 76 | 76 | 75 | 76 | 76 | 76 | 76 | 75 | 75 | 75 | 74 | 74 | 74 | 74 | 76 | 76 | 77 | 76 | 77 | 77 | 77 | 77 | 77 | 76 |
| Heat Index (°F) | 100 | 99 | 94 | 89 | 86 | 79 | 78 | 78 | 77 | 76 | 75 | 75 | 75 | 75 | 78 | 86 | 92 | 94 | 99 | 100 | 100 | 100 | 100 | 96 |
| Surface Wind (mph) | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 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 | 52 | 38 | 32 | 41 | 36 | 35 | 59 | 54 | 45 | 50 | 41 | 42 | 56 | 55 | 54 | 71 | 85 | 68 | 68 | 73 | 75 | 77 |
| Precipitation Potential (%) | 33 | 25 | 11 | 5 | 6 | 6 | 5 | 4 | 8 | 6 | 7 | 7 | 8 | 7 | 6 | 9 | 18 | 20 | 28 | 32 | 26 | 34 | 52 | 62 |
| Relative Humidity (%) | 66 | 68 | 72 | 82 | 88 | 91 | 94 | 91 | 94 | 97 | 97 | 97 | 97 | 97 | 94 | 88 | 82 | 75 | 72 | 70 | 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 (°F) | 84 | 83 | 81 | 81 | 81 | 80 | 80 | 79 | 79 | 78 | 77 | 77 | 77 | 78 | 80 | 82 | 85 | 88 | 90 | 92 | 93 | 94 | 94 | 93 |
| Dewpoint (°F) | 76 | 76 | 75 | 76 | 76 | 76 | 76 | 75 | 75 | 75 | 74 | 74 | 75 | 75 | 76 | 76 | 75 | 75 | 75 | 74 | 74 | 74 | 73 | 73 |
| Heat Index (°F) | 93 | 91 | 87 | 87 | 87 | 86 | 86 | 79 | 79 | 78 | 77 | 77 | 77 | 78 | 86 | 89 | 94 | 98 | 101 | 102 | 103 | 105 | 103 | 102 |
| Surface Wind (mph) | 8 | 8 | 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 | 74 | 73 | 70 | 67 | 69 | 71 | 73 | 67 | 61 | 55 | 50 | 44 | 39 | 37 | 35 | 33 | 41 | 49 | 57 | 57 | 57 | 57 |
| Precipitation Potential (%) | 67 | 67 | 20 | 20 | 20 | 20 | 20 | 20 | 5 | 5 | 5 | 5 | 5 | 5 | 8 | 8 | 8 | 8 | 8 | 8 | 35 | 35 | 35 | 35 |
| Relative Humidity (%) | 77 | 80 | 82 | 85 | 85 | 88 | 88 | 88 | 88 | 91 | 90 | 90 | 94 | 91 | 88 | 82 | 72 | 66 | 62 | 56 | 54 | 53 | 51 | 52 |
| 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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