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| Point Forecast: Greenbelt MD 38.99N 76.89W (Elev. 102 ft) |
Last Update: 1:31 am EDT May 16, 2022 |
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| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 65 | 64 | 64 | 64 | 65 | 68 | 70 | 72 | 75 | 76 | 77 | 76 | 74 | 75 | 73 | 74 | 72 | 69 | 66 | 64 | 62 | 61 | 60 | 58 |
| Dewpoint (°F) | 64 | 63 | 63 | 64 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 65 | 65 | 64 | 64 | 61 | 60 | 57 | 56 | 54 | 54 | 54 | 53 | 53 |
| Heat Index (°F) | 75 | 76 | 77 | 76 | 75 | |||||||||||||||||||
| Surface Wind (mph) | 1 | 1 | 1 | 1 | 2 | 2 | 5 | 6 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 8 | 7 | 6 | 5 | 3 |
| Wind Dir | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | NW | NW | NW | NW | W | W | W |
| Gust | 18 | 20 | 18 | 18 | ||||||||||||||||||||
| Sky Cover (%) | 79 | 92 | 99 | 97 | 90 | 77 | 63 | 69 | 60 | 69 | 68 | 69 | 81 | 63 | 61 | 31 | 23 | 18 | 6 | 3 | 3 | 2 | 3 | 3 |
| Precipitation Potential (%) | 17 | 17 | 15 | 15 | 15 | 17 | 17 | 17 | 27 | 27 | 27 | 88 | 88 | 88 | 59 | 59 | 59 | 11 | 11 | 11 | 9 | 9 | 9 | 1 |
| Relative Humidity (%) | 97 | 97 | 97 | 100 | 97 | 90 | 84 | 79 | 74 | 71 | 69 | 69 | 74 | 69 | 73 | 64 | 66 | 66 | 70 | 70 | 75 | 78 | 78 | 83 |
| Rain | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Ocnl | Ocnl | Ocnl | Lkly | Lkly | Lkly | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Temperature (°F) | 58 | 57 | 57 | 57 | 59 | 62 | 65 | 68 | 71 | 73 | 74 | 75 | 76 | 76 | 75 | 74 | 73 | 71 | 68 | 66 | 63 | 61 | 59 | 58 |
| Dewpoint (°F) | 53 | 53 | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 50 | 50 | 49 | 48 | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 48 | 47 | 46 | 45 |
| Heat Index (°F) | 75 | 76 | 76 | 75 | ||||||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 5 | 5 | 6 | 8 | 9 | 11 | 13 | 13 | 14 | 14 | 13 | 13 | 11 | 9 | 8 | 8 | 7 | 7 | 7 | 6 | 6 |
| Wind Dir | W | W | SW | W | W | W | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 18 | 20 | 21 | 22 | 22 | 21 | 21 | 18 | ||||||||||||||||
| Sky Cover (%) | 2 | 1 | 3 | 2 | 2 | 3 | 4 | 7 | 8 | 12 | 18 | 21 | 19 | 14 | 12 | 10 | 7 | 5 | 4 | 3 | 2 | 3 | 6 | 7 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 83 | 86 | 83 | 83 | 78 | 70 | 63 | 54 | 49 | 44 | 43 | 40 | 37 | 37 | 38 | 40 | 43 | 46 | 51 | 54 | 58 | 60 | 62 | 62 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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