| Point Forecast: Ontario International Arpt CA 34.06N 117.58W (Elev. 276 m) |
Last Update: 1:08 pm PDT Jul 12, 2025 |
 |
|
[show menu] |
| Date | 07/12 | 07/13 | ||||||||||||||||||||||
| Hour (PDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°C) | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 18 | 18 | 20 | 22 | 25 | 28 | 30 | 31 | 32 | 33 | 32 | 31 | 29 | 26 | 24 |
| Dewpoint (°C) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 15 | 16 | 15 | 15 | 14 | 15 | 15 | 15 | 15 |
| Heat Index (°C) | 25 | 28 | 29 | 31 | 32 | 32 | 31 | 30 | 28 | 26 | 24 | |||||||||||||
| Surface Wind (mph) | 9 | 8 | 6 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 6 | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 10 | 10 | 9 |
| Wind Dir | W | W | W | W | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | W | W | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 1 | 14 | 14 | 14 | 32 | 32 | 32 | 53 | 53 | 53 | 43 | 43 | 43 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 69 | 75 | 77 | 80 | 85 | 86 | 86 | 89 | 91 | 89 | 85 | 79 | 70 | 57 | 46 | 40 | 38 | 35 | 35 | 36 | 39 | 43 | 51 | 58 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/14 | |||||||||||||||||||||||
| Hour (PDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°C) | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 19 | 21 | 23 | 26 | 28 | 30 | 32 | 32 | 32 | 31 | 29 | 27 | 25 | 23 |
| Dewpoint (°C) | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 |
| Heat Index (°C) | 26 | 28 | 30 | 31 | 32 | 32 | 31 | 29 | 28 | 25 | ||||||||||||||
| Surface Wind (mph) | 8 | 7 | 6 | 6 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 8 | 9 | 10 | 11 | 13 | 13 | 13 | 11 | 10 | 10 |
| Wind Dir | W | 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 (%) | 1 | 7 | 7 | 7 | 7 | 7 | 7 | 18 | 18 | 18 | 18 | 18 | 18 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 64 | 69 | 73 | 76 | 79 | 83 | 87 | 89 | 89 | 86 | 80 | 72 | 64 | 55 | 47 | 41 | 37 | 36 | 36 | 38 | 42 | 48 | 56 | 62 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
