| Point Forecast: 4 Miles S Portola Valley CA 37.33N 122.21W (Elev. 2231 ft) |
Last Update: 1:50 am PDT May 13, 2024 |
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| Date | 05/13 | 05/14 | ||||||||||||||||||||||
| Hour (PDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 54 | 53 | 55 | 56 | 57 | 59 | 60 | 61 | 61 | 61 | 63 | 61 | 61 | 60 | 58 | 55 | 56 | 56 | 55 | 54 | 54 | 53 | 52 | 52 |
| Dewpoint (°F) | 39 | 39 | 39 | 41 | 42 | 45 | 47 | 49 | 49 | 49 | 50 | 49 | 49 | 49 | 47 | 44 | 41 | 40 | 39 | 38 | 38 | 38 | 37 | 36 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 7 | 8 | 9 | 9 | 10 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | WNW | W | W | WNW | WNW | W | W | W | W | WSW | WSW | WSW | SW | SW | SW | SW | SW | SSW | SW | SSW | SSW | SSW | S | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 6 | 4 | 7 | 3 | 7 | 4 | 3 | 4 | 8 | 57 | 40 | 22 | 22 | 22 | 27 | 27 | 27 |
| 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 (%) | 57 | 60 | 56 | 56 | 58 | 60 | 60 | 64 | 65 | 64 | 62 | 64 | 65 | 66 | 67 | 66 | 58 | 55 | 55 | 55 | 56 | 56 | 56 | 54 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/15 | |||||||||||||||||||||||
| Hour (PDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 51 | 52 | 53 | 55 | 57 | 59 | 61 | 62 | 63 | 63 | 63 | 63 | 62 | 59 | 57 | 54 | 53 | 52 | 51 | 51 | 50 | 50 | 49 | 49 |
| Dewpoint (°F) | 35 | 36 | 38 | 40 | 42 | 45 | 47 | 48 | 50 | 51 | 52 | 52 | 52 | 50 | 48 | 46 | 45 | 45 | 44 | 44 | 43 | 43 | 42 | 42 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | S | S | S | S | S | S | WSW | WSW | WSW | W | W | W | W | W | W | WSW | WSW | WSW | SW | SW | SW | SSW | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 57 | 57 | 57 | 57 | 57 | 57 | 9 | 9 | 9 | 9 | 9 | 9 | 12 | 12 | 12 | 21 | 21 | 21 | 25 | 25 | 25 | 57 | 57 | 57 |
| 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 (%) | 54 | 55 | 57 | 58 | 59 | 59 | 60 | 62 | 64 | 66 | 67 | 68 | 70 | 71 | 73 | 74 | 75 | 76 | 76 | 76 | 76 | 76 | 76 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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