| Point Forecast: 5 Miles W Napa Co. Airport CA 38.21N 122.38W (Elev. 3 ft) |
Last Update: 1:26 pm PDT Jul 15, 2025 |
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| Date | 07/15 | 07/16 | ||||||||||||||||||||||
| Hour (PDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 62 | 59 | 58 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 55 | 56 | 56 | 57 | 59 | 60 | 63 | 66 | 68 | 69 | 70 | 69 | 68 | 66 |
| Dewpoint (°F) | 56 | 55 | 55 | 54 | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 53 | 54 | 53 | 55 | 56 | 57 | 58 | 58 | 58 | 58 | 58 | 57 | 57 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 9 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 10 | 11 | 11 | 10 | 10 | 9 |
| Wind Dir | WSW | WSW | WSW | WSW | W | W | W | W | W | W | WSW | WSW | WSW | SW | SSW | SSW | SSW | SSW | S | SSW | SSW | SW | SW | WSW |
| Gust | 18 | 18 | 18 | 18 | ||||||||||||||||||||
| Sky Cover (%) | 7 | 21 | 38 | 63 | 68 | 73 | 77 | 80 | 86 | 85 | 87 | 89 | 85 | 88 | 81 | 59 | 24 | 9 | 3 | 2 | 1 | 10 | 10 | 10 |
| Precipitation Potential (%) | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 10 | 10 | 10 | 10 | 3 | 3 | 3 | 3 | 3 | 3 | 10 | 10 | 10 |
| Relative Humidity (%) | 78 | 87 | 90 | 91 | 89 | 88 | 89 | 89 | 90 | 88 | 90 | 91 | 91 | 87 | 88 | 85 | 80 | 75 | 71 | 69 | 67 | 68 | 67 | 71 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/17 | |||||||||||||||||||||||
| Hour (PDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 62 | 59 | 57 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 56 | 56 | 57 | 59 | 61 | 63 | 66 | 69 | 72 | 73 | 74 | 74 | 72 | 69 |
| Dewpoint (°F) | 56 | 54 | 54 | 55 | 54 | 54 | 54 | 53 | 53 | 52 | 53 | 53 | 54 | 55 | 56 | 57 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 58 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 7 | 7 | 7 | 10 | 10 | 10 | 10 | 10 | 10 |
| Wind Dir | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | W | W | W | WSW | WSW | WSW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 10 | 13 | 32 | 50 | 50 | 50 | 73 | 73 | 73 | 85 | 85 | 85 | 72 | 72 | 72 | 24 | 24 | 24 | 1 | 1 | 1 | 2 | 2 | 2 |
| Precipitation Potential (%) | 10 | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 6 | 6 | 6 | 6 | 6 | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Relative Humidity (%) | 78 | 86 | 90 | 91 | 92 | 91 | 91 | 90 | 90 | 90 | 90 | 90 | 89 | 87 | 84 | 80 | 75 | 69 | 64 | 61 | 60 | 61 | 64 | 69 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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