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| Point Forecast: Rialto CA 34.11N 117.37W (Elev. 1250 ft) |
Last Update: 12:42 pm PDT May 6, 2021 |
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| Date | 05/07 | 05/08 | ||||||||||||||||||||||
| Hour (PDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 60 | 59 | 58 | 57 | 56 | 56 | 57 | 59 | 62 | 65 | 69 | 73 | 77 | 79 | 79 | 80 | 78 | 75 | 71 | 68 | 65 | 63 | 61 | 60 |
| Dewpoint (°F) | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 50 | 50 | 50 | 49 | 50 | 50 | 51 | 51 | 52 | 52 | 52 |
| Heat Index (°F) | 77 | 79 | 79 | 79 | 78 | 75 | ||||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 6 | 7 | 9 | 10 | 13 | 15 | 15 | 14 | 11 | 9 | 8 | 7 | 7 | 6 |
| Wind Dir | SW | SW | SW | SW | SW | SW | SW | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | SW |
| Gust | 18 | 22 | 24 | 24 | 23 | 20 | ||||||||||||||||||
| Sky Cover (%) | 21 | 21 | 21 | 21 | 42 | 42 | 42 | 42 | 42 | 42 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 11 |
| 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 (%) | 81 | 83 | 86 | 88 | 89 | 87 | 84 | 78 | 70 | 61 | 53 | 46 | 40 | 37 | 36 | 35 | 37 | 42 | 48 | 55 | 62 | 67 | 72 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/09 | |||||||||||||||||||||||
| Hour (PDT) | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 |
| Temperature (°F) | 58 | 57 | 56 | 55 | 54 | 54 | 55 | 57 | 61 | 66 | 71 | 75 | 79 | 81 | 81 | 82 | 80 | 78 | 74 | 71 | 69 | 67 | 65 | 64 |
| Dewpoint (°F) | 52 | 52 | 52 | 51 | 51 | 50 | 50 | 49 | 48 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 49 | 50 | 50 | 50 | 50 | 50 | 50 |
| Heat Index (°F) | 75 | 79 | 80 | 80 | 80 | 80 | 78 | |||||||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 6 | 5 | 3 | 5 | 6 | 8 | 10 | 13 | 15 | 16 | 17 | 17 | 17 | 16 | 14 | 11 | 9 | 7 | 5 | 3 |
| Wind Dir | SW | SW | SW | SW | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W |
| Gust | 18 | 22 | 24 | 26 | 28 | 28 | 28 | 25 | 23 | 20 | ||||||||||||||
| Sky Cover (%) | 11 | 11 | 11 | 11 | 48 | 48 | 48 | 48 | 48 | 48 | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | 7 |
| 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 (%) | 80 | 83 | 85 | 88 | 89 | 87 | 82 | 74 | 62 | 51 | 42 | 36 | 33 | 31 | 31 | 31 | 33 | 36 | 41 | 47 | 52 | 55 | 59 | 61 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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