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| Point Forecast: Altoona PA 40.51N 78.4W (Elev. 365 m) |
Last Update: 8:42 am EDT Sep 21, 2019 |
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| Date | 09/21 | 09/22 | ||||||||||||||||||||||
| Hour (EDT) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| Temperature (°C) | 24 | 25 | 26 | 27 | 28 | 28 | 28 | 26 | 24 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 19 | 22 |
| Dewpoint (°C) | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 |
| Heat Index (°C) | 24 | 25 | 26 | 28 | 29 | 29 | 29 | 26 | 24 | |||||||||||||||
| Surface Wind (mph) | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
| Wind Dir | SW | SW | W | SW | W | W | W | SW | SW | W | SW | SW | SW | SW | SW | W | SW | W | W | W | W | W | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 43 | 48 | 52 | 72 | 71 | 71 | 70 | 62 | 53 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 28 | 31 | 34 | 37 | 40 | 43 | 42 | 41 |
| Precipitation Potential (%) | 4 | 4 | 4 | 16 | 16 | 16 | 19 | 19 | 19 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Relative Humidity (%) | 69 | 64 | 64 | 60 | 58 | 57 | 61 | 69 | 79 | 87 | 90 | 90 | 87 | 90 | 90 | 90 | 90 | 93 | 97 | 97 | 93 | 93 | 81 | 71 |
| Rain | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 09/23 | |||||||||||||||||||||||
| Hour (EDT) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 |
| Temperature (°C) | 25 | 27 | 28 | 29 | 29 | 29 | 29 | 27 | 26 | 24 | 23 | 22 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 21 |
| Dewpoint (°C) | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 |
| Heat Index (°C) | 25 | 27 | 28 | 30 | 29 | 29 | 29 | 28 | 26 | 24 | ||||||||||||||
| Surface Wind (mph) | 3 | 5 | 5 | 6 | 8 | 7 | 6 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 |
| Wind Dir | SW | W | W | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 40 | 39 | 38 | 36 | 38 | 39 | 40 | 41 | 42 | 43 | 43 | 42 | 42 | 42 | 42 | 42 | 45 | 48 | 51 | 54 | 57 | 60 | 63 | 66 |
| Precipitation Potential (%) | 6 | 6 | 6 | 6 | 11 | 11 | 11 | 11 | 11 | 5 | 5 | 5 | 5 | 5 | 5 | 8 | 8 | 8 | 8 | 8 | 8 | 47 | 47 | 47 |
| Relative Humidity (%) | 60 | 56 | 53 | 50 | 51 | 51 | 51 | 54 | 60 | 64 | 69 | 73 | 78 | 78 | 78 | 78 | 81 | 84 | 87 | 84 | 84 | 84 | 75 | 73 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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