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| Point Forecast: 2 Miles SW Union City CA 37.58N 122.04W (Elev. 121 ft) |
Last Update: 9:23 am PDT Sep 29, 2023 |
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| Date | 09/29 | 09/30 | ||||||||||||||||||||||
| Hour (PDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°F) | 65 | 68 | 70 | 70 | 70 | 70 | 69 | 67 | 65 | 64 | 62 | 62 | 62 | 63 | 62 | 62 | 62 | 62 | 61 | 61 | 60 | 61 | 60 | 61 |
| Dewpoint (°F) | 59 | 60 | 61 | 61 | 61 | 61 | 60 | 61 | 59 | 58 | 58 | 59 | 59 | 58 | 58 | 58 | 58 | 57 | 58 | 57 | 57 | 57 | 56 | 57 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 10 | 11 | 14 | 15 | 16 | 16 | 16 | 15 | 14 | 13 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 9 | 10 | 9 | 10 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | WSW | WSW | WSW | WSW | W | W | W |
| Gust | 20 | 22 | 24 | 25 | 24 | 23 | 20 | 18 | 18 | |||||||||||||||
| Sky Cover (%) | 57 | 57 | 57 | 57 | 57 | 64 | 78 | 86 | 95 | 92 | 88 | 71 | 83 | 84 | 80 | 82 | 77 | 83 | 82 | 90 | 88 | 92 | 71 | 78 |
| Precipitation Potential (%) | 0 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 21 | 21 | 21 | 21 | 21 | 21 | 38 | 38 | 38 | 38 | 38 |
| Relative Humidity (%) | 81 | 75 | 75 | 72 | 73 | 74 | 73 | 80 | 82 | 82 | 86 | 87 | 89 | 85 | 87 | 86 | 87 | 86 | 87 | 86 | 87 | 87 | 88 | 88 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 10/01 | |||||||||||||||||||||||
| Hour (PDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°F) | 61 | 62 | 63 | 64 | 65 | 65 | 65 | 64 | 63 | 62 | 60 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 57 | 57 | 56 | 56 | 57 | 60 |
| Dewpoint (°F) | 58 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 7 | 7 | 7 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | W | W | W | W | W | W | W | W | W | W | W | W | W | SW | SW | SW | SSW | SSW | SSW | S | S | S | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 81 | 83 | 83 | 83 | 59 | 59 | 59 | 57 | 57 | 57 | 27 | 27 | 27 | 15 | 15 | 15 | 19 | 19 | 19 | 27 | 27 | 27 | 25 | 25 |
| Precipitation Potential (%) | 38 | 26 | 26 | 26 | 26 | 26 | 26 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 88 | 87 | 84 | 79 | 75 | 74 | 73 | 74 | 77 | 81 | 84 | 85 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 87 | 87 | 87 | 85 | 80 |
| Rain | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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