Weather forecast for 10 daysVallejo, CA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 88°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSW 215°
  • Humidity: 27%
  • UV index: 3
  • Sunrise: 7:19 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
Today, sunshine and minimal clouds are in the outlook.
A remarkable high of a tropical 87.8°F during the day and a stark low of a crisp 53.6°F at night are anticipated.
Today, climate comparisons show a temperature closer to September's 80.1°F than October's 72.9°F.
Sunrise was at 7:19 am and sunset will be at 6:28 pm; the daylight will last for 11h and 8min.

Sunday Oct 18, 2026

  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 14mphSW 233°
  • Humidity: 67%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
Tomorrow, in Vallejo, thin clouds will pass through at times, but overall, it will remain bright.
The temperature scale will run from a maximum of a warm 73.4°F to a minimum of a cool 51.8°F.
Forecasts show the temperature predicted to reach the usual October high of 72.9°F.
Sunrise will be at 7:20 am and sunset at 6:27 pm; tomorrow's daylight will last for 11h and 6min.

10-day overview

Daily temperatures

Warmest day: today 88°C.
Coldest day: Monday 66°C.

Chance of precipitation

Highest chance: Wednesday - Thursday 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 88°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSW 215°
  • Humidity: 27%
  • UV index: 3
  • Sunrise: 7:19 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 14mphSW 233°
  • Humidity: 67%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 15mphWSW 249°
  • Humidity: 63%
  • UV index: 5
  • Sunrise: 7:21 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 52°F
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0.08"
  • Wind: 7mphSW 233°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:22 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • Wind: 8mphWSW 242°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:23 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 50°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 11mphWSW 238°
  • Humidity: 77%
  • UV index: 4
  • Sunrise: 7:24 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 9mphWSW 238°
  • Humidity: 67%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphSW 225°
  • Humidity: 67%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 70°F
  • 48°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 10mphSW 224°
  • Humidity: 63%
  • UV index: 4
  • Sunrise: 7:28 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphSW 226°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:29 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
Primarily gloomy and occasionally sun-filled weather is forecasted.
Rain is expected on Tuesday and Wednesday.
Temperature differences will be noticeable in the next ten days. Highs will range from 66.2°F to 87.8°F, while the low temperature range extends from 46.4°F to 53.6°F.
Today is the hottest day, with a maximum temperature of 87.8°F; expect the coldest day on Monday with a high of 66.2°F.
Updated: Oct 17, 2026 @ 22:13:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, changing cloud patterns will allow for periods of sunshine.

Tomorrow, the highest temperature will be 73.4°F, while the lowest temperature will be 51.8°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature tomorrow will be also in line with the average low temperature.

On Sunday, in Vallejo, sunrise will be at 7:20 am and sunset at 6:27 pm (PDT).

In Vallejo, the length of the day tomorrow will be 11h and 6min.