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| Point Forecast: Chevy Chase MD 38.98N 77.09W (Elev. 105 m) |
Last Update: 4:31 am EDT Sep 26, 2020 |
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[show menu] | Font Size: A A A  |
| Date | 09/26 | 09/27 | ||||||||||||||||||||||
| 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) | 17 | 18 | 18 | 19 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 21 | 20 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 |
| Dewpoint (°C) | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 2 |
| Wind Dir | E | E | E | E | E | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | S | S | S | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 94 | 88 | 82 | 81 | 80 | 79 | 76 | 72 | 69 | 71 | 72 | 74 | 80 | 86 | 92 | 93 | 93 |
| Precipitation Potential (%) | 33 | 33 | 33 | 33 | 33 | 33 | 24 | 24 | 24 | 10 | 10 | 10 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 100 | 100 | 100 | 97 | 90 | 84 | 81 | 79 | 76 | 76 | 79 | 81 | 93 | 93 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/28 | |||||||||||||||||||||||
| 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) | 18 | 19 | 21 | 22 | 23 | 24 | 24 | 25 | 25 | 25 | 24 | 23 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 19 |
| Dewpoint (°C) | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Heat Index (°C) | 24 | 24 | 25 | 25 | 25 | 24 | ||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 3 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 7 | 6 | 5 | 3 | 3 | 5 | 6 | 5 | 3 |
| Wind Dir | W | W | 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 (%) | 93 | 92 | 90 | 89 | 86 | 83 | 81 | 77 | 73 | 70 | 74 | 78 | 83 | 56 | 53 | 52 | 57 | 66 | 71 | 73 | 76 | 77 | 79 | 82 |
| Precipitation Potential (%) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Relative Humidity (%) | 100 | 97 | 90 | 84 | 79 | 76 | 74 | 71 | 69 | 69 | 74 | 81 | 87 | 90 | 93 | 93 | 93 | 97 | 97 | 97 | 100 | 100 | 100 | 100 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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