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 94 °F on Wednesday, while the low is 53 °F on Sunday. There are expected to be 5 sunny days and rain on 1 day this week.

There are currently no weather alerts.

Monday, July 20

- High of 87 °F, low of 59 °F (24% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:01 AM, sunset at 8:29 PM
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1 / 6
Jaromir Chalabala // Shutterstock

Tuesday, July 21

- High of 90 °F, low of 64 °F (23% humidity)
- Overcast with a 58% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:02 AM, sunset at 8:28 PM
- First quarter moon
2 / 6
Andrzej Kubik // Shutterstock

Wednesday, July 22

- High of 94 °F, low of 61 °F (25% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:03 AM, sunset at 8:27 PM
3 / 6
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Thursday, July 23

- High of 90 °F, low of 57 °F (29% 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 6:03 AM, sunset at 8:27 PM
4 / 6
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Friday, July 24

- High of 90 °F, low of 56 °F (30% 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 6:04 AM, sunset at 8:26 PM
5 / 6
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Saturday, July 25

- High of 88 °F, low of 54 °F (26% 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 6:05 AM, sunset at 8:25 PM
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6 / 6
Witaya Proadtayakogool // Shutterstock

Sunday, July 26

- High of 92 °F, low of 53 °F (18% 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 6:06 AM, sunset at 8:24 PM

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