Napa 7-day weather forecast

Written by:
August 11, 2025
ESOlex // Shutterstock

Napa 7-day weather forecast

Stacker created the forecast for Napa, California using data from OpenWeather. This week's high is 92 °F on Friday, while the low is 54 °F on Thursday. There are expected to be 6 sunny days and precipitation on 0 days this week.

There are currently no weather alerts.

Monday, August 11

- High of 87 °F, low of 56 °F (22% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:20 AM, sunset at 8:08 PM
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1 / 6
AnnaElizabeth photography // Shutterstock

Tuesday, August 12

- High of 90 °F, low of 56 °F (28% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:21 AM, sunset at 8:06 PM
2 / 6
Matusciac Alexandru // Shutterstock

Wednesday, August 13

- High of 86 °F, low of 55 °F (31% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:22 AM, sunset at 8:05 PM
3 / 6
Rachasie // Shutterstock

Thursday, August 14

- High of 85 °F, low of 54 °F (32% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:23 AM, sunset at 8:04 PM
4 / 6
Flamingo Images // Shutterstock

Friday, August 15

- High of 92 °F, low of 56 °F (26% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:24 AM, sunset at 8:03 PM
- Last quarter moon
5 / 6
Leena Robinson // Shutterstock

Saturday, August 16

- High of 87 °F, low of 60 °F (40% humidity)
- Partly 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 6:25 AM, sunset at 8:01 PM
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6 / 6
Happy Together // Shutterstock

Sunday, August 17

- High of 85 °F, low of 60 °F (46% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:25 AM, sunset at 8:00 PM

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