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| Point Forecast: 4 Miles SSE Mc Henry MD 39.51N 79.31W (Elev. 2480 ft) |
Last Update: 4:32 am EDT May 21, 2022 |
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| Date | 05/21 | 05/22 | ||||||||||||||||||||||
| Hour (EDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 67 | 67 | 68 | 70 | 72 | 74 | 78 | 79 | 80 | 82 | 82 | 82 | 83 | 82 | 81 | 77 | 73 | 71 | 70 | 67 | 66 | 65 | 65 | 64 |
| Dewpoint (°F) | 57 | 57 | 57 | 59 | 59 | 60 | 60 | 60 | 59 | 59 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 58 |
| Heat Index (°F) | 78 | 79 | 81 | 82 | 82 | 82 | 83 | 82 | 81 | 77 | ||||||||||||||
| Surface Wind (mph) | 11 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 8 | 8 | 8 | 8 | 7 | 6 | 6 | 5 | 6 | 6 | 6 | 7 | 6 | 7 |
| Wind Dir | W | W | W | W | W | W | W | W | SW | SW | SW | SW | SW | S | S | S | S | S | S | SW | SW | SW | SW | SW |
| Gust | 20 | 18 | 18 | 21 | 22 | 21 | 20 | 18 | ||||||||||||||||
| Sky Cover (%) | 22 | 38 | 38 | 37 | 35 | 32 | 30 | 34 | 37 | 40 | 40 | 40 | 39 | 37 | 35 | 32 | 37 | 42 | 47 | 52 | 57 | 61 | 55 | 48 |
| Precipitation Potential (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 5 | 5 | 13 | 13 | 13 | 25 | 25 | 25 | 34 | 34 | 34 | 23 | 23 | 23 | 8 | 8 | 8 |
| Relative Humidity (%) | 70 | 70 | 68 | 68 | 64 | 62 | 54 | 52 | 49 | 46 | 44 | 44 | 43 | 44 | 47 | 54 | 62 | 66 | 68 | 75 | 78 | 81 | 81 | 81 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- |
| Date | 05/23 | |||||||||||||||||||||||
| Hour (EDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 64 | 64 | 65 | 69 | 72 | 73 | 75 | 77 | 77 | 77 | 75 | 74 | 71 | 68 | 65 | 62 | 59 | 57 | 55 | 53 | 51 | 50 | 48 | 48 |
| Dewpoint (°F) | 58 | 59 | 60 | 61 | 62 | 62 | 63 | 63 | 63 | 63 | 63 | 64 | 63 | 61 | 58 | 56 | 55 | 54 | 53 | 51 | 50 | 48 | 47 | 46 |
| Heat Index (°F) | 75 | 77 | 77 | 77 | 75 | |||||||||||||||||||
| Surface Wind (mph) | 7 | 8 | 8 | 7 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 |
| Wind Dir | SW | SW | SW | SW | W | W | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 18 | 18 | 18 | 20 | 21 | 21 | 21 | 21 | 20 | 18 | 18 | |||||||||||||
| Sky Cover (%) | 41 | 37 | 33 | 36 | 38 | 42 | 47 | 56 | 68 | 78 | 87 | 83 | 82 | 83 | 87 | 88 | 85 | 82 | 81 | 78 | 71 | 68 | 65 | 62 |
| Precipitation Potential (%) | 7 | 7 | 7 | 17 | 17 | 17 | 38 | 38 | 38 | 78 | 78 | 78 | 81 | 81 | 81 | 31 | 31 | 31 | 23 | 23 | 23 | 16 | 16 | 16 |
| Relative Humidity (%) | 81 | 84 | 84 | 76 | 71 | 68 | 66 | 62 | 62 | 62 | 66 | 71 | 76 | 78 | 78 | 81 | 87 | 90 | 93 | 93 | 96 | 93 | 96 | 93 |
| Rain | -- | -- | -- | SChc | SChc | SChc | Chc | Chc | Chc | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Ocnl | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- |
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