Weather forecast for tomorrowSan Quentin, CA

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 66°F
  • 50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 12mphW 276°
  • Humidity: 62%
  • UV index: 5
  • Sunrise: 7:22 am PDT
  • Sunset: 6:26 pm PDT
  • ▼
Tomorrow, overcast skies will be the dominant feature.
A temperature range of an enjoyable 66.2°F to a fresh 50°F is anticipated.
Expect the maximum temperature to remain consistent with the typical October high of 68.9°F.
Sunrise will be at 7:22 am and sunset at 6:26 pm; tomorrow's daylight will last for 11h and 4min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest period: 3 am - 6 am 52°C.

Chance of precipitation

Highest chance: 9 pm 13%.

Hourly weather forecast

  • 12 am
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphW 279°
  • Humidity: 88%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 54°F
  • Feels like:
    52°F
Mostly Clear
Mostly Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphW 274°
  • Humidity: 90%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 52°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphWNW 283°
  • Humidity: 90%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 52°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphW 277°
  • Humidity: 89%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:22 am
  • 8 am
  • 52°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphW 281°
  • Humidity: 87%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 57°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphW 277°
  • Humidity: 72%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 266°
  • Humidity: 55%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphW 268°
  • Humidity: 48%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphW 275°
  • Humidity: 48%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphWNW 288°
  • Humidity: 57%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:26 pm
  • 8 pm
  • 57°F
  • Feels like:
    55°F
Cloudy
Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 7mphWNW 300°
  • Humidity: 69%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 55°F
  • Feels like:
    54°F
Cloudy
Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphWNW 296°
  • Humidity: 81%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of cloudy and dry and sunny weather is anticipated.
The temperature will vary between the lowest temperature of 51.8°F and the highest temperature of 66.2°F. The warmest part of the day will be at 2 pm and 3 pm.
The maximum temperature will be resembling the average high of 68.9°F in October. The minimum temperature will be also a few degrees lower than October's average low of 54.3°F.
Updated: Oct 18, 2026 @ 08:17:40 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, gloomy and cloudy conditions will set the tone.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 50°F.
The maximum temperature will be in line with the average highest temperature of 68.9°F in October. The lowest temperature will be slightly cooler than the average low of 54.3°F.

On Monday, in San Quentin, sunrise will be at 7:22 am and sunset at 6:26 pm (PDT).

In San Quentin, tomorrow, there will be 11h and 4min of daylight.