| Point Forecast: Perryville MD 39.57N 76.07W (Elev. 79 ft) |
Last Update: 4:30 am EDT Jul 15, 2025 |
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| Date | 07/15 | 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) | 75 | 76 | 76 | 77 | 79 | 80 | 81 | 83 | 84 | 84 | 85 | 84 | 84 | 84 | 83 | 82 | 80 | 80 | 79 | 79 | 79 | 78 | 78 | 78 |
| Dewpoint (°F) | 74 | 74 | 75 | 75 | 76 | 75 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 75 | 76 | 77 | 77 | 76 | 77 | 76 | 77 | 76 | 76 |
| Heat Index (°F) | 75 | 76 | 76 | 77 | 79 | 85 | 87 | 91 | 93 | 93 | 94 | 93 | 93 | 93 | 90 | 89 | 87 | 87 | 79 | 79 | 79 | 78 | 78 | 78 |
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Wind Dir | N | N | N | N | N | N | NW | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 59 | 57 | 56 | 54 | 50 | 61 | 33 | 40 | 61 | 60 | 57 | 60 | 59 | 53 | 38 | 45 | 34 | 22 | 25 | 38 | 40 | 33 | 45 | 49 |
| Precipitation Potential (%) | 13 | 11 | 5 | 7 | 5 | 4 | 6 | 21 | 41 | 40 | 36 | 40 | 38 | 30 | 13 | 10 | 12 | 9 | 10 | 8 | 18 | 16 | 16 | 15 |
| Relative Humidity (%) | 97 | 94 | 97 | 94 | 91 | 85 | 85 | 80 | 77 | 77 | 75 | 77 | 77 | 77 | 77 | 82 | 91 | 91 | 91 | 94 | 91 | 97 | 94 | 94 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| 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) | 78 | 78 | 79 | 81 | 81 | 81 | 82 | 83 | 84 | 84 | 84 | 84 | 83 | 83 | 82 | 82 | 81 | 81 | 81 | 80 | 80 | 80 | 80 | 80 |
| Dewpoint (°F) | 76 | 76 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 77 | 77 |
| Heat Index (°F) | 78 | 78 | 79 | 89 | 89 | 89 | 91 | 93 | 95 | 95 | 95 | 95 | 93 | 92 | 90 | 90 | 88 | 88 | 88 | 86 | 86 | 86 | 87 | 87 |
| Surface Wind (mph) | 5 | 5 | 5 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Wind Dir | SW | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 58 | 49 | 63 | 63 | 64 | 65 | 71 | 76 | 82 | 82 | 82 | 82 | 82 | 82 | 78 | 77 | 77 | 76 | 75 | 75 | 74 | 73 | 72 | 71 |
| Precipitation Potential (%) | 16 | 14 | 44 | 44 | 44 | 44 | 44 | 44 | 72 | 72 | 72 | 72 | 72 | 72 | 45 | 45 | 45 | 45 | 45 | 45 | 20 | 20 | 20 | 20 |
| Relative Humidity (%) | 94 | 94 | 94 | 91 | 91 | 91 | 88 | 85 | 82 | 82 | 82 | 82 | 85 | 82 | 85 | 85 | 88 | 88 | 88 | 88 | 88 | 88 | 91 | 91 |
| Rain | SChc | -- | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- |
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