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| Point Forecast: Frederick MD 39.44N 77.39W (Elev. 289 ft) |
Last Update: 4:33 pm EDT May 26, 2022 |
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| Date | 05/26 | 05/27 | ||||||||||||||||||||||
| Hour (EDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 70 | 69 | 69 | 68 | 67 | 67 | 66 | 67 | 67 | 67 | 67 | 67 | 68 | 69 | 70 | 71 | 71 | 73 | 72 | 72 | 72 | 72 | 72 | 74 |
| Dewpoint (°F) | 63 | 63 | 64 | 64 | 65 | 64 | 65 | 65 | 65 | 64 | 65 | 65 | 66 | 67 | 67 | 69 | 69 | 70 | 70 | 69 | 69 | 69 | 68 | 68 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 8 | 7 | 6 | 6 | 5 | 3 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 11 | 13 | 13 | 13 | 13 | 11 | 10 |
| Wind Dir | SE | SE | SE | SE | SE | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | 20 | 21 | 21 | 21 | 20 | 20 | 18 | |||||||||||||||||
| Sky Cover (%) | 87 | 81 | 85 | 89 | 91 | 95 | 96 | 97 | 96 | 97 | 97 | 97 | 96 | 97 | 97 | 97 | 97 | 95 | 97 | 97 | 94 | 94 | 95 | 96 |
| Precipitation Potential (%) | 5 | 13 | 13 | 13 | 16 | 16 | 16 | 28 | 28 | 28 | 36 | 36 | 36 | 38 | 39 | 51 | 67 | 71 | 80 | 91 | 94 | 93 | 77 | 69 |
| Relative Humidity (%) | 78 | 81 | 84 | 87 | 93 | 90 | 97 | 93 | 93 | 90 | 93 | 93 | 93 | 93 | 90 | 93 | 93 | 90 | 93 | 90 | 90 | 90 | 87 | 82 |
| Rain | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly |
| Date | 05/28 | |||||||||||||||||||||||
| Hour (EDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 73 | 73 | 70 | 68 | 67 | 66 | 66 | 65 | 63 | 62 | 61 | 61 | 62 | 64 | 66 | 69 | 71 | 73 | 74 | 75 | 76 | 76 | 76 | 75 |
| Dewpoint (°F) | 67 | 67 | 67 | 66 | 65 | 65 | 64 | 64 | 63 | 61 | 60 | 60 | 60 | 60 | 60 | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 60 |
| Heat Index (°F) | 75 | 76 | 76 | 76 | 75 | |||||||||||||||||||
| Surface Wind (mph) | 9 | 7 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 6 | 7 | 8 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 |
| Wind Dir | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | 18 | 20 | 20 | 20 | 20 | 18 | ||||||||||||||||||
| Sky Cover (%) | 93 | 90 | 88 | 87 | 85 | 81 | 76 | 72 | 68 | 63 | 59 | 55 | 52 | 49 | 52 | 56 | 59 | 59 | 58 | 58 | 57 | 56 | 54 | 51 |
| Precipitation Potential (%) | 60 | 70 | 70 | 70 | 56 | 56 | 56 | 14 | 14 | 14 | 5 | 5 | 5 | 22 | 22 | 22 | 22 | 22 | 22 | 28 | 28 | 28 | 28 | 28 |
| Relative Humidity (%) | 81 | 81 | 90 | 93 | 93 | 97 | 93 | 97 | 100 | 97 | 97 | 97 | 93 | 87 | 81 | 76 | 71 | 66 | 64 | 62 | 60 | 58 | 58 | 60 |
| Rain | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc |
| Thunder | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | -- | -- |
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