Weather forecast for tomorrowVallejo, CA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 14mphSW 234°
  • Humidity: 67%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, intermittent cloud cover is expected, allowing for some sunshine.
The predicted temperature range extends from a high of a moderately hot 73.4°F to a low of a fresh 51.8°F.
Tomorrow's highest temperature is expected to match the regular high for October at 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.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 72°C.
Coldest hour: 6 am 55°C.

Chance of precipitation

Highest chance: 6 am 12%.

Hourly weather forecast

  • 12 am
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSW 236°
  • Humidity: 67%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphSW 230°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 57°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphWSW 247°
  • Humidity: 85%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 55°F
  • Feels like:
    55°F
Mostly Clear
Mostly Clear
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 4mphWSW 250°
  • Humidity: 86%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:20 am
  • 8 am
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 4mphWSW 241°
  • Humidity: 87%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 am
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSW 227°
  • Humidity: 82%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSW 226°
  • Humidity: 63%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSW 228°
  • Humidity: 52%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSW 236°
  • Humidity: 50%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphWSW 246°
  • Humidity: 61%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:27 pm
  • 8 pm
  • 59°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphWSW 243°
  • Humidity: 76%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 57°F
  • Feels like:
    55°F
Mostly Clear
Mostly Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 11mphWSW 241°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, primarily sunny and occasionally cloud-filled weather is expected.
The temperature will vary between the lowest temperature of 55.4°F and the highest temperature of 71.6°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the high temperature will be similar to October's average. The temperature low is forecasted to be also in line with the usual October value of 54°F.
Updated: Oct 18, 2026 @ 04:30:15 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, scattered clouds may briefly filter the sunlight, but it will remain bright overall.

Tomorrow, the highest temperature will be 73.4°F, while the lowest temperature will be 51.8°F.
Tomorrow, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature will be also in line with the average low of 54°F.

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

Tomorrow, the daylight will last for 11h and 6min.