Weather forecast for tomorrowAntioch, CA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 82°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphW 261°
  • Humidity: 45%
  • UV index: 5
  • Sunrise: 7:19 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
Tomorrow, bright and sunny weather is also expected.
A significant variation in temperature is anticipated, ranging from a high of a temperate 82.4°F to a low of a fresh 51.8°F.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is appraised at 82.4°F.
Tomorrow, it will be warmer, and the temperature will align more with September's typical maximum of 85.3°F.
Sunrise will be at 7:19 am and sunset at 6:25 pm; tomorrow's daylight will last for 11h and 7min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 54°C.

Chance of precipitation

Highest chance: 3 am - 6 am 6%.

Hourly weather forecast

  • 12 am
  • 59°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 15mphWSW 238°
  • Humidity: 71%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 57°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 14mphWSW 240°
  • Humidity: 75%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 54°F
  • Feels like:
    50°F
Mostly Clear
Mostly Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 13mphWSW 239°
  • Humidity: 80%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 54°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 12mphWSW 240°
  • Humidity: 81%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:19 am
  • 8 am
  • 54°F
  • Feels like:
    50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 12mphWSW 243°
  • Humidity: 78%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 61°F
  • Feels like:
    59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphWSW 248°
  • Humidity: 60%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 256°
  • Humidity: 45%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 256°
  • Humidity: 39%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphWSW 255°
  • Humidity: 39%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Cloudy
Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphWSW 252°
  • Humidity: 43%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:25 pm
  • 8 pm
  • 59°F
  • Feels like:
    57°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphWSW 247°
  • Humidity: 56%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphWSW 243°
  • Humidity: 64%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of sunny and gloomy weather is expected.
The temperature will vary between a minimum of 53.6°F and a maximum of 68°F. The warmest part of the day will be from 1 pm to 4 pm.
Tomorrow, the temperature will be closer to September's norm than to October's average of 75.9°F. The nighttime low tomorrow will be resembling October's typical minimum temperature.
Updated: Oct 18, 2026 @ 06:19:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, expect bright skies and plenty of sunshine.

Tomorrow, the maximum temperature will be 82.4°F, while the minimum temperature will be 51.8°F. The maximum heat index, which adjusts the air temperature based on humidity, is assessed at 82.4°F.
The highest temperature will be a couple of degrees higher than the average maximum of 75.9°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

On Sunday, in Antioch, sunrise will be at 7:19 am and sunset at 6:25 pm (PDT).

In Antioch, the length of the day tomorrow will be 11h and 7min.