| Point Forecast: Ashton-Sandy Spring MD 39.13N 77.01W (Elev. 400 ft) |
Last Update: 8:25 pm EDT Jun 30, 2024 |
 |
|
[show menu] |
| Date | 06/30 | 07/01 | ||||||||||||||||||||||
| Hour (EDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 80 | 77 | 74 | 71 | 68 | 66 | 63 | 61 | 60 | 59 | 60 | 62 | 64 | 68 | 70 | 72 | 74 | 75 | 76 | 77 | 77 | 78 | 76 | 75 |
| Dewpoint (°F) | 68 | 65 | 62 | 60 | 57 | 54 | 54 | 53 | 53 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 54 | 54 | 54 | 54 | 54 | 55 |
| Heat Index (°F) | 83 | 77 | 75 | 76 | 77 | 77 | 78 | 76 | 75 | |||||||||||||||
| Surface Wind (mph) | 9 | 11 | 13 | 13 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 10 | 9 | 6 |
| Wind Dir | NW | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Gust | 20 | 21 | 21 | 20 | 21 | 21 | 21 | 20 | 20 | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 18 | ||||
| Sky Cover (%) | 49 | 45 | 40 | 36 | 31 | 27 | 22 | 9 | 10 | 8 | 2 | 6 | 6 | 12 | 11 | 12 | 13 | 20 | 14 | 26 | 25 | 13 | 9 | 9 |
| Precipitation Potential (%) | 34 | 28 | 23 | 17 | 12 | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 67 | 67 | 66 | 68 | 68 | 65 | 72 | 75 | 78 | 78 | 75 | 72 | 67 | 59 | 55 | 51 | 48 | 48 | 46 | 45 | 45 | 43 | 46 | 50 |
| Rain | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/02 | |||||||||||||||||||||||
| Hour (EDT) | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| Temperature (°F) | 70 | 68 | 67 | 66 | 64 | 62 | 61 | 60 | 60 | 60 | 62 | 65 | 69 | 73 | 77 | 79 | 81 | 81 | 82 | 83 | 83 | 82 | 81 | 79 |
| Dewpoint (°F) | 54 | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 53 | 54 | 55 | 56 | 56 | 56 | 57 | 56 | 56 | 56 | 55 | 54 | 54 | 55 | 55 | 57 |
| Heat Index (°F) | 77 | 79 | 81 | 81 | 81 | 82 | 82 | 81 | 81 | 79 | ||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 5 | 5 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 7 | 7 | 7 | 7 | 6 | 6 |
| Wind Dir | N | N | N | N | N | N | N | N | N | NE | NE | NE | NE | E | E | E | E | E | E | SE | SE | SE | SE | SE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 7 | 6 | 8 | 7 | 6 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 6 | 8 | 9 | 13 | 16 | 20 | 24 | 27 | 31 | 29 | 26 | 24 |
| 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 (%) | 57 | 61 | 63 | 65 | 70 | 75 | 75 | 78 | 78 | 81 | 78 | 73 | 63 | 55 | 50 | 45 | 42 | 42 | 40 | 37 | 37 | 40 | 41 | 47 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ||||||||||||