| Point Forecast: 2 Miles NNW San Ramon CA 37.77N 121.98W (Elev. 518 ft) |
Last Update: 1:26 pm PDT May 16, 2026 |
 |
|
[show menu] |
| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (PDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°F) | 74 | 73 | 72 | 68 | 63 | 59 | 56 | 55 | 53 | 52 | 50 | 49 | 49 | 48 | 48 | 50 | 52 | 58 | 61 | 65 | 69 | 72 | 74 | 75 |
| Dewpoint (°F) | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 46 | 45 | 45 | 44 | 44 | 43 | 43 | 43 | 43 | 42 | 42 | 40 | 39 | 36 | 37 | 35 | 33 |
| Heat Index (°F) | 75 | |||||||||||||||||||||||
| Surface Wind (mph) | 10 | 9 | 9 | 9 | 9 | 8 | 7 | 6 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 6 | 8 | 9 | 11 | 13 | 14 |
| Wind Dir | W | W | W | W | W | W | W | WSW | WSW | WSW | WSW | W | W | W | WSW | W | WNW | NW | NW | NNW | NNW | NNW | NNW | NNW |
| Gust | 21 | 21 | 21 | 21 | 21 | 18 | 18 | 20 | 21 | 23 | 25 | 26 | 30 | |||||||||||
| Sky Cover (%) | 2 | 2 | 0 | 8 | 4 | 4 | 12 | 6 | 14 | 19 | 5 | 11 | 14 | 8 | 15 | 22 | 19 | 9 | 12 | 11 | 2 | 2 | 2 | 2 |
| 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 (%) | 39 | 41 | 42 | 47 | 56 | 62 | 67 | 72 | 75 | 77 | 79 | 81 | 82 | 84 | 83 | 77 | 68 | 55 | 46 | 38 | 30 | 27 | 24 | 21 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (PDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°F) | 77 | 76 | 76 | 76 | 73 | 69 | 68 | 66 | 63 | 62 | 60 | 58 | 58 | 58 | 58 | 59 | 60 | 64 | 68 | 72 | 76 | 79 | 81 | 83 |
| Dewpoint (°F) | 32 | 30 | 28 | 28 | 26 | 24 | 22 | 22 | 20 | 21 | 21 | 21 | 24 | 25 | 27 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 |
| Heat Index (°F) | 77 | 76 | 77 | 76 | 76 | 79 | 79 | 80 | ||||||||||||||||
| Surface Wind (mph) | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 10 | 10 |
| Wind Dir | NNW | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Gust | 33 | 38 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 31 | 31 | 31 | 22 | 22 |
| Sky Cover (%) | 1 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 1 | 1 | 1 | 2 | 2 | 2 | 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 (%) | 20 | 18 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 21 | 22 | 24 | 26 | 29 | 30 | 31 | 30 | 27 | 24 | 20 | 17 | 16 | 14 | 13 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| ||||||||||