| Point Forecast: San Francisco CA 37.77N 122.41W (Elev. 131 ft) |
Last Update: 11:26 pm PDT Aug 15, 2026 |
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| Date | 08/16 | 08/17 | ||||||||||||||||||||||
| 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) | 59 | 59 | 58 | 58 | 58 | 57 | 58 | 59 | 60 | 62 | 64 | 67 | 68 | 69 | 68 | 67 | 66 | 64 | 62 | 60 | 59 | 58 | 58 | 58 |
| Dewpoint (°F) | 57 | 56 | 56 | 56 | 55 | 55 | 56 | 56 | 57 | 59 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 58 | 58 | 57 | 56 | 56 | 56 | 56 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 5 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 6 | 7 | 9 | 11 | 11 | 13 | 11 | 9 | 9 | 8 | 7 | 7 | 7 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SW | WSW | WSW | WSW | WSW | WSW | W | W | W | W | W | WSW | WSW | WSW | WSW | WSW |
| Gust | 18 | 18 | ||||||||||||||||||||||
| Sky Cover (%) | 65 | 73 | 81 | 84 | 77 | 85 | 81 | 75 | 80 | 71 | 44 | 38 | 20 | 46 | 29 | 19 | 34 | 34 | 20 | 34 | 53 | 60 | 67 | 72 |
| Precipitation Potential (%) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 |
| Relative Humidity (%) | 92 | 91 | 91 | 91 | 91 | 92 | 92 | 91 | 91 | 89 | 84 | 79 | 76 | 74 | 74 | 75 | 79 | 83 | 86 | 90 | 91 | 92 | 92 | 92 |
| Rain | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/18 | |||||||||||||||||||||||
| 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 | 58 | 58 | 58 | 58 | 58 | 58 | 59 | 60 | 62 | 64 | 66 | 66 | 67 | 67 | 66 | 65 | 63 | 61 | 59 | 59 | 58 | 58 | 58 |
| Dewpoint (°F) | 56 | 56 | 56 | 56 | 55 | 55 | 56 | 57 | 58 | 59 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 58 | 57 | 57 | 56 | 56 | 56 | 56 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 13 | 13 | 13 | 13 | 13 | 13 | 10 | 10 | 10 | 8 | 8 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | WSW | WSW |
| Gust | 18 | 18 | 18 | 20 | 20 | 20 | 18 | 18 | 18 | |||||||||||||||
| Sky Cover (%) | 77 | 79 | 84 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 57 | 57 | 57 | 37 | 37 | 37 | 71 | 71 | 71 | 60 | 60 | 60 | 73 | 73 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 92 | 91 | 91 | 91 | 91 | 92 | 92 | 91 | 91 | 89 | 86 | 82 | 79 | 77 | 77 | 79 | 82 | 85 | 88 | 91 | 92 | 92 | 92 | 92 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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