| Point Forecast: Pittsburgh PA 40.43N 79.98W (Elev. 814 ft) |
Last Update: 6:01 pm EDT Jul 21, 2026 |
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| Date | 07/21 | 07/22 | ||||||||||||||||||||||
| 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) | 75 | 74 | 73 | 72 | 71 | 70 | 69 | 68 | 68 | 67 | 66 | 65 | 65 | 65 | 66 | 68 | 70 | 73 | 74 | 75 | 76 | 75 | 75 | 73 |
| Dewpoint (°F) | 73 | 72 | 71 | 71 | 70 | 69 | 68 | 68 | 68 | 67 | 66 | 64 | 64 | 64 | 63 | 62 | 62 | 61 | 60 | 60 | 60 | 59 | 59 | 58 |
| Heat Index (°F) | 75 | 75 | 76 | 75 | 75 | |||||||||||||||||||
| Surface Wind (mph) | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 10 | 10 |
| Wind Dir | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gust | 23 | 21 | ||||||||||||||||||||||
| Sky Cover (%) | 52 | 65 | 67 | 73 | 83 | 69 | 58 | 60 | 53 | 59 | 55 | 56 | 59 | 84 | 65 | 35 | 41 | 56 | 46 | 47 | 41 | 49 | 37 | 33 |
| Precipitation Potential (%) | 28 | 48 | 50 | 60 | 74 | 54 | 11 | 9 | 12 | 9 | 10 | 9 | 4 | 2 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 94 | 94 | 95 | 97 | 96 | 97 | 98 | 98 | 98 | 99 | 99 | 98 | 98 | 97 | 90 | 82 | 75 | 68 | 63 | 60 | 58 | 58 | 57 | 59 |
| Rain | Lkly | Lkly | Chc | Lkly | Lkly | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Lkly | Lkly | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/23 | |||||||||||||||||||||||
| 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) | 71 | 69 | 66 | 64 | 62 | 61 | 59 | 58 | 56 | 55 | 55 | 54 | 55 | 58 | 61 | 66 | 70 | 73 | 76 | 77 | 78 | 78 | 78 | 77 |
| Dewpoint (°F) | 58 | 57 | 57 | 57 | 56 | 55 | 55 | 55 | 55 | 54 | 53 | 53 | 53 | 55 | 55 | 54 | 54 | 53 | 53 | 53 | 53 | 54 | 54 | 55 |
| Heat Index (°F) | 76 | 77 | 78 | 78 | 78 | 77 | ||||||||||||||||||
| Surface Wind (mph) | 10 | 9 | 8 | 6 | 5 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 5 | 6 | 6 | 5 | 6 | 6 | 6 | 5 |
| Wind Dir | NW | N | NW | N | N | N | N | N | N | N | N | N | N | N | N | N | NE | NE | N | N | N | NE | NE | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 45 | 44 | 41 | 45 | 40 | 33 | 13 | 18 | 5 | 10 | 10 | 13 | 18 | 19 | 31 | 17 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 5 |
| Precipitation Potential (%) | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 62 | 65 | 71 | 77 | 79 | 82 | 85 | 89 | 94 | 95 | 95 | 94 | 95 | 90 | 79 | 66 | 56 | 50 | 46 | 44 | 42 | 42 | 43 | 46 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
