Vallejo 7-day weather forecast

Written by:
August 18, 2025
ESOlex // Shutterstock

Vallejo 7-day weather forecast

Stacker created the forecast for Vallejo, California using data from OpenWeather. This week's high is 88 °F on Thursday, while the low is 57 °F on Monday. There are expected to be 7 sunny days and precipitation on 0 days this week.

There are currently no weather alerts.

Monday, August 18

- High of 79 °F, low of 57 °F (33% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:27 AM, sunset at 7:58 PM
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afoto6267 // Shutterstock

Tuesday, August 19

- High of 76 °F, low of 57 °F (42% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:27 AM, sunset at 7:57 PM
2 / 6
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Wednesday, August 20

- High of 83 °F, low of 57 °F (30% 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 6:28 AM, sunset at 7:56 PM
3 / 6
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Thursday, August 21

- High of 88 °F, low of 60 °F (24% 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 6:29 AM, sunset at 7:54 PM
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Friday, August 22

- High of 85 °F, low of 59 °F (29% humidity)
- Mostly 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 6:30 AM, sunset at 7:53 PM
- New moon
5 / 6
supergenijalac // Shutterstock

Saturday, August 23

- High of 77 °F, low of 58 °F (42% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:31 AM, sunset at 7:52 PM
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6 / 6
Rachasie // Shutterstock

Sunday, August 24

- High of 77 °F, low of 57 °F (43% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:32 AM, sunset at 7:50 PM

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