Napa 7-day weather forecast

Written by:
June 8, 2026
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Napa 7-day weather forecast

created the forecast for Napa, California using data from . This week's high is 98 掳F on Monday, while the low is 55 掳F on Sunday. There are expected to be 7 sunny days and precipitation on 0 days this week.

There are currently no weather alerts.

Monday, August 3

- High of 98 掳F, low of 59 掳F (16% 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 6:13 AM, sunset at 8:17 PM
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1 / 6
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Tuesday, August 4

- High of 94 掳F, low of 59 掳F (19% 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 6:14 AM, sunset at 8:16 PM
2 / 6
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Wednesday, August 5

- High of 93 掳F, low of 56 掳F (20% 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 6:15 AM, sunset at 8:15 PM
- Last quarter moon
3 / 6
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Thursday, August 6

- High of 95 掳F, low of 56 掳F (18% 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 6:15 AM, sunset at 8:14 PM
4 / 6
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Friday, August 7

- High of 98 掳F, low of 57 掳F (14% 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 6:16 AM, sunset at 8:13 PM
5 / 6
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Saturday, August 8

- High of 96 掳F, low of 56 掳F (17% 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 6:17 AM, sunset at 8:11 PM
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6 / 6
Maxim Grohotov // Shutterstock

Sunday, August 9

- High of 85 掳F, low of 55 掳F (30% 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 6:18 AM, sunset at 8:10 PM

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