| Point Forecast: 2 Miles S Portola Valley CA 37.35N 122.21W (Elev. 1440 ft) |
Last Update: 3:31 am PDT Jun 23, 2024 |
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| Date | 06/23 | 06/24 | ||||||||||||||||||||||
| Hour (PDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 58 | 60 | 64 | 68 | 72 | 75 | 78 | 79 | 80 | 79 | 79 | 76 | 73 | 70 | 65 | 62 | 61 | 60 | 58 | 59 | 58 | 57 | 56 | 56 |
| Dewpoint (°F) | 46 | 48 | 50 | 52 | 55 | 57 | 58 | 58 | 60 | 59 | 58 | 56 | 54 | 53 | 52 | 49 | 49 | 48 | 47 | 47 | 46 | 45 | 44 | 44 |
| Heat Index (°F) | 75 | 78 | 79 | 81 | 80 | 79 | 77 | |||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | S | S | SSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SSW | SSW | SSW | SSW | SSW | SSW | SSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 12 | 9 | 5 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 2 | 4 | 2 | 6 | 4 | 4 | 3 | 5 | 7 | 6 | 7 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Relative Humidity (%) | 63 | 64 | 60 | 58 | 54 | 53 | 50 | 50 | 50 | 50 | 49 | 50 | 51 | 55 | 61 | 63 | 64 | 64 | 65 | 65 | 64 | 64 | 63 | 64 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/25 | |||||||||||||||||||||||
| Hour (PDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°F) | 54 | 57 | 60 | 64 | 68 | 71 | 74 | 77 | 78 | 79 | 79 | 77 | 73 | 68 | 63 | 61 | 59 | 58 | 56 | 56 | 55 | 54 | 53 | 53 |
| Dewpoint (°F) | 44 | 46 | 48 | 49 | 51 | 53 | 54 | 54 | 54 | 53 | 52 | 51 | 51 | 51 | 50 | 48 | 46 | 45 | 44 | 44 | 44 | 43 | 42 | 42 |
| Heat Index (°F) | 77 | 78 | 79 | 79 | 77 | |||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 2 |
| Wind Dir | SSW | SW | SW | WSW | WSW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 8 | 5 | 4 | 3 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 4 | 6 | 8 | 12 | 16 | 20 | 18 | 15 | 13 | 15 | 17 | 19 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 2 |
| Relative Humidity (%) | 67 | 65 | 63 | 58 | 54 | 52 | 49 | 46 | 43 | 41 | 40 | 41 | 46 | 54 | 61 | 62 | 62 | 62 | 64 | 65 | 66 | 67 | 66 | 66 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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