Napa 7-day weather forecast

Written by:
December 15, 2025
ESOlex // Shutterstock

Napa 7-day weather forecast

Stacker created the forecast for Napa, California using data from OpenWeather. This week's high is 67 °F on Monday, while the low is 41 °F on Sunday. There are expected to be 0 sunny days and rain on 3 days this week.

NWS San Francisco CA has issued a dense fog advisory until Monday at 11:00 AM.

Sunday, December 14

- High of 65 °F, low of 41 °F (53% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (2 UV index)
- Light air (3 mph wind)
- Sunrise at 7:18 AM, sunset at 4:49 PM
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Cari Rubin Photography // Shutterstock

Monday, December 15

- High of 67 °F, low of 42 °F (39% humidity)
- Overcast with a 0% chance of rain
- Light breeze (4 mph wind)
- Sunrise at 7:19 AM, sunset at 4:49 PM
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STILLFX // Shutterstock

Tuesday, December 16

- High of 63 °F, low of 55 °F (77% humidity)
- Overcast with a 31% chance of rain (0 mm of rain)
- Light breeze (6 mph wind)
- Sunrise at 7:19 AM, sunset at 4:50 PM
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ESOlex // Shutterstock

Wednesday, December 17

- High of 66 °F, low of 51 °F (63% humidity)
- Partly sunny with a 62% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 7:20 AM, sunset at 4:50 PM
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Saijai Boonmak // Shutterstock

Thursday, December 18

- High of 64 °F, low of 49 °F (63% humidity)
- Partly cloudy with a 0% chance of rain
- Light breeze (5 mph wind)
- Sunrise at 7:21 AM, sunset at 4:50 PM
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otsphoto // Shutterstock

Friday, December 19

- High of 62 °F, low of 52 °F (73% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 7:21 AM, sunset at 4:51 PM
- New moon
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Valeriy Boyarskiy // Shutterstock

Saturday, December 20

- High of 63 °F, low of 51 °F (65% humidity)
- Mostly cloudy with a 0% chance of rain
- Light air (3 mph wind)
- Sunrise at 7:22 AM, sunset at 4:51 PM

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