| Point Forecast: Chevy Chase MD 38.98N 77.09W (Elev. 105 m) |
Last Update: 7:31 am EDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (EDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°C) | 24 | 25 | 27 | 28 | 29 | 30 | 30 | 31 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 24 |
| Dewpoint (°C) | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Heat Index (°C) | 24 | 25 | 29 | 32 | 33 | 35 | 34 | 36 | 35 | 34 | 34 | 33 | 32 | 29 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | ||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 3 | 5 | 5 | 5 | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 |
| Wind Dir | NW | N | N | N | N | SE | S | S | SE | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 51 | 53 | 48 | 52 | 49 | 44 | 52 | 57 | 65 | 69 | 57 | 57 | 46 | 35 | 48 | 43 | 54 | 45 | 51 | 49 | 46 | 56 | 53 | 42 |
| Precipitation Potential (%) | 6 | 3 | 4 | 5 | 10 | 17 | 28 | 35 | 47 | 53 | 35 | 35 | 15 | 19 | 18 | 18 | 11 | 6 | 8 | 7 | 8 | 11 | 12 | 12 |
| Relative Humidity (%) | 97 | 90 | 82 | 77 | 74 | 70 | 68 | 68 | 65 | 68 | 72 | 74 | 77 | 85 | 88 | 91 | 90 | 94 | 94 | 97 | 97 | 100 | 97 | 94 |
| Rain | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (EDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°C) | 26 | 27 | 28 | 29 | 30 | 31 | 31 | 31 | 31 | 30 | 29 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 |
| Dewpoint (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 |
| Heat Index (°C) | 26 | 30 | 32 | 34 | 36 | 37 | 37 | 37 | 37 | 36 | 34 | 32 | 31 | 30 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 |
| Surface Wind (mph) | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
| Wind Dir | S | SW | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 54 | 69 | 66 | 62 | 67 | 73 | 78 | 78 | 78 | 78 | 78 | 78 | 74 | 71 | 67 | 64 | 66 | 67 | 69 | 59 | 50 | 40 | 39 | 37 |
| Precipitation Potential (%) | 31 | 31 | 31 | 31 | 31 | 31 | 67 | 67 | 67 | 67 | 67 | 67 | 25 | 25 | 25 | 25 | 25 | 25 | 8 | 8 | 8 | 8 | 8 | 8 |
| Relative Humidity (%) | 91 | 88 | 82 | 77 | 72 | 70 | 68 | 68 | 70 | 72 | 72 | 77 | 77 | 79 | 88 | 91 | 94 | 90 | 90 | 94 | 94 | 94 | 94 | 94 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- |
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