Napa 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Napa 7-day weather forecast

Stacker created the forecast for Napa, California using data from OpenWeather. This week's high is 87 °F on Wednesday, while the low is 50 °F on Sunday. There are expected to be 7 sunny days and precipitation on 0 days this week.

NWS San Francisco CA has issued a coastal flood advisory until Thursday at 05:00 AM.

Monday, June 15

- High of 82 °F, low of 57 °F (29% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:45 AM, sunset at 8:34 PM
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1 / 6
Piyawat Nandeenopparit // Shutterstock

Tuesday, June 16

- High of 86 °F, low of 59 °F (29% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (6 mph wind)
- Sunrise at 5:45 AM, sunset at 8:34 PM
2 / 6
cooperr // Shutterstock

Wednesday, June 17

- High of 87 °F, low of 55 °F (29% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:45 AM, sunset at 8:34 PM
3 / 6
New Africa // Shutterstock

Thursday, June 18

- High of 82 °F, low of 51 °F (37% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:45 AM, sunset at 8:35 PM
4 / 6
Pablesku // Shutterstock

Friday, June 19

- High of 75 °F, low of 51 °F (39% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:45 AM, sunset at 8:35 PM
5 / 6
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Saturday, June 20

- High of 77 °F, low of 53 °F (38% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:45 AM, sunset at 8:35 PM
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6 / 6
GP PIXSTOCK // Shutterstock

Sunday, June 21

- High of 84 °F, low of 50 °F (31% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Light breeze (6 mph wind)
- Sunrise at 5:45 AM, sunset at 8:35 PM
- First quarter moon

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