| Point Forecast: Gaithersburg MD 39.15N 77.21W (Elev. 443 ft) |
Last Update: 5:55 am EDT Jul 14, 2025 |
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| Date | 07/14 | 07/15 | ||||||||||||||||||||||
| Hour (EDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 73 | 73 | 76 | 78 | 80 | 83 | 84 | 85 | 85 | 84 | 84 | 82 | 82 | 80 | 77 | 76 | 75 | 75 | 74 | 74 | 73 | 74 | 73 | 73 |
| Dewpoint (°F) | 73 | 73 | 74 | 75 | 75 | 76 | 76 | 76 | 76 | 75 | 75 | 76 | 76 | 75 | 75 | 75 | 74 | 74 | 73 | 73 | 73 | 72 | 72 | 72 |
| Heat Index (°F) | 76 | 78 | 85 | 91 | 93 | 94 | 94 | 92 | 92 | 89 | 89 | 85 | 77 | 76 | 75 | 75 | ||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Wind Dir | SE | SE | S | S | S | S | S | S | SE | SE | SE | SE | S | S | NE | E | E | E | NE | SE | NW | NW | NW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 75 | 68 | 59 | 63 | 53 | 45 | 55 | 63 | 69 | 70 | 69 | 75 | 85 | 94 | 87 | 80 | 87 | 78 | 60 | 70 | 72 | 70 | 67 | 73 |
| Precipitation Potential (%) | 21 | 18 | 9 | 6 | 11 | 18 | 33 | 44 | 52 | 55 | 53 | 62 | 77 | 90 | 59 | 51 | 25 | 16 | 16 | 18 | 28 | 21 | 17 | 15 |
| Relative Humidity (%) | 100 | 100 | 94 | 91 | 85 | 80 | 77 | 75 | 75 | 74 | 74 | 82 | 82 | 85 | 94 | 97 | 97 | 97 | 97 | 97 | 100 | 93 | 97 | 97 |
| Rain | SChc | SChc | -- | -- | -- | SChc | Chc | Chc | Chc | Lkly | Chc | Lkly | Ocnl | Ocnl | Lkly | Chc | Chc | SChc | SChc | SChc | Chc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Lkly | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- |
| Date | 07/16 | |||||||||||||||||||||||
| Hour (EDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 72 | 73 | 74 | 76 | 79 | 81 | 83 | 84 | 84 | 84 | 84 | 84 | 83 | 81 | 80 | 79 | 78 | 77 | 76 | 75 | 74 | 74 | 74 | 74 |
| Dewpoint (°F) | 72 | 72 | 73 | 74 | 74 | 75 | 75 | 75 | 75 | 74 | 74 | 75 | 75 | 74 | 75 | 75 | 75 | 75 | 74 | 74 | 74 | 73 | 73 | 73 |
| Heat Index (°F) | 76 | 79 | 87 | 90 | 92 | 92 | 91 | 91 | 92 | 90 | 86 | 85 | 79 | 78 | 77 | 76 | 75 | |||||||
| Surface Wind (mph) | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | NW | NW | N | N | NE | E | E | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 83 | 71 | 67 | 71 | 66 | 60 | 65 | 70 | 75 | 75 | 75 | 75 | 75 | 75 | 52 | 51 | 49 | 48 | 52 | 57 | 61 | 65 | 68 | 72 |
| Precipitation Potential (%) | 11 | 11 | 29 | 29 | 29 | 29 | 29 | 29 | 62 | 62 | 62 | 62 | 62 | 62 | 24 | 24 | 24 | 24 | 24 | 24 | 15 | 15 | 15 | 15 |
| Relative Humidity (%) | 100 | 97 | 97 | 94 | 85 | 82 | 77 | 74 | 74 | 72 | 72 | 74 | 77 | 79 | 85 | 88 | 91 | 94 | 94 | 97 | 100 | 97 | 97 | 97 |
| Rain | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
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