Weather information for the Napa Valley area is provided below. Average temperatures, climate details and current forecasts are included!
Climate
Close to the ocean and yet shielded by mountains, Napa Valley has a wet but temperate climate ideal for both vineyards and visitors. The bulk of the year features long, warm days with little moisture, followed by cool evenings. During winter there is more moisture, but temperatures never become extreme in either direction.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
| Avg. High | 57 | 62 | 65 | 71 | 75 | 81 | 83 | 82 | 82 | 76 | 64 | 57 | |
| Avg. Low | 39 | 42 | 43 | 45 | 49 | 53 | 55 | 55 | 53 | 49 | 43 | 39 | |
| Precipitation | 5.4 | 5.0 | 4.1 | 1.5 | 0.8 | 0.2 | 0.1 | 0.1 | 0.4 | 1.4 | 3.7 | 3.9 | |
Tonight
Rain then Showers And Thunderstorms
Saturday
Showers And Thunderstorms then Heavy Rain
Saturday Night
Areas Of Fog
Sunday
Areas Of Fog then Mostly Sunny
Sunday Night
Patchy Fog then Light Rain
Monday
Light Rain
Detailed Forecast |
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|---|---|
| Tonight | Rain before 4am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 48. South southeast wind 16 to 21 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible. |
| Saturday | Showers and thunderstorms before 7am, then rain between 7am and 4pm. Some of the storms could produce heavy rain. Partly sunny. High near 57, with temperatures falling to around 52 in the afternoon. Southwest wind 7 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible. |
| Saturday Night | Areas of fog between 10pm and 5am, then areas of fog and patchy frost. Mostly clear. Low around 35, with temperatures rising to around 37 overnight. Northwest wind 1 to 5 mph. |
| Sunday | Areas of fog and patchy frost before 7am, then patchy frost and patchy fog between 7am and 10am. Mostly sunny, with a high near 55. Northeast wind 1 to 6 mph. |
| Sunday Night | Patchy fog between 10pm and 4am, then rain and areas of fog. Mostly cloudy, with a low around 37. East northeast wind around 3 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Monday | Rain and areas of fog. Cloudy, with a high near 50. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible. |
| Monday Night | A chance of rain before 10pm, then patchy fog. Mostly cloudy, with a low around 40. Chance of precipitation is 30%. |
| Tuesday | Patchy fog before 10am. Mostly sunny, with a high near 61. |
| Tuesday Night | Patchy fog after 5am. Mostly clear, with a low around 39. |
| Wednesday | Patchy fog before 7am. Mostly sunny, with a high near 61. |
| Wednesday Night | Patchy fog after 5am. Partly cloudy, with a low around 40. |
| Thursday | Patchy fog before 7am. Mostly sunny, with a high near 61. |
| Thursday Night | Partly cloudy, with a low around 41. |
| Friday | Patchy fog before 7am, then a chance of rain between 4pm and 5pm. Partly sunny, with a high near 60. |
