Weather forecast for 10 daysSan Quentin, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 75°F
- 50°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 10mphWSW 244°
- Humidity: 72%
- UV index: 5
- Sunrise: 7:21 am PDT
- Sunset: 6:28 pm PDT
- details ▼
On Sunday, October 18, variable cloud cover will persist, but sunshine will break through.
The temperature variation is anticipated to range from a maximum of a moderately hot 75.2°F to a minimum of a fresh 50°F.
Today, the weather pattern will resemble September more than October, with a forecast high of 75.2°F.
Sunrise will be at 7:21 am and sunset at 6:28 pm; the daylight will last for 11h and 7min.
The temperature variation is anticipated to range from a maximum of a moderately hot 75.2°F to a minimum of a fresh 50°F.
Today, the weather pattern will resemble September more than October, with a forecast high of 75.2°F.
Sunrise will be at 7:21 am and sunset at 6:28 pm; the daylight will last for 11h and 7min.
10-day overview
Daily temperatures
Warmest day: today 75°C.
Coldest day: tomorrow 66°C.
Coldest day: tomorrow 66°C.
Chance of precipitation
Highest chance: Wednesday 65%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 75°F
- 50°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 10mphWSW 244°
- Humidity: 72%
- UV index: 5
- Sunrise: 7:21 am PDT
- Sunset: 6:28 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 50°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphW 273°
- Humidity: 63%
- UV index: 5
- Sunrise: 7:22 am PDT
- Sunset: 6:26 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 54°F
Cloudy
- Precip. probability: 14%
- Precipitation: 0.2"
- Wind: 5mphNE 44°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:23 am PDT
- Sunset: 6:25 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 52°F
Showers
- Precip. probability: 65%
- Precipitation: 0.12"
- Wind: 6mphENE 77°
- Humidity: 76%
- UV index: 3
- Sunrise: 7:24 am PDT
- Sunset: 6:24 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 70°F
- 50°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 9mphW 274°
- Humidity: 76%
- UV index: 4
- Sunrise: 7:25 am PDT
- Sunset: 6:23 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 48°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0"
- Wind: 7mphN 353°
- Humidity: 71%
- UV index: 4
- Sunrise: 7:26 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 72°F
- 50°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0.04"
- Wind: 8mphNE 51°
- Humidity: 68%
- UV index: 4
- Sunrise: 7:27 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 70°F
- 48°F
AM Showers
- Precip. probability: 35%
- Precipitation: 0.08"
- Wind: 9mphWNW 296°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:28 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 70°F
- 46°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 8mphW 270°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:29 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 70°F
- 46°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 7mphSSE 147°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:30 am PDT
- Sunset: 6:16 pm PDT
- details ▼
Weather patterns suggest that primarily overcast and occasionally rain-filled weather is predicted.
Rain is predicted for Tuesday, Wednesday, Saturday and next Sunday.
In the coming days, the highest temperature will vary between 66.2°F and 75.2°F, while the minimum temperature is forecast to range between 46.4°F and 53.6°F.
Today is the warmest day, with a maximum temperature of 75.2°F; expect the coldest day on Monday with a high of 66.2°F.
Rain is predicted for Tuesday, Wednesday, Saturday and next Sunday.
In the coming days, the highest temperature will vary between 66.2°F and 75.2°F, while the minimum temperature is forecast to range between 46.4°F and 53.6°F.
Today is the warmest day, with a maximum temperature of 75.2°F; expect the coldest day on Monday with a high of 66.2°F.
Updated: Oct 18, 2026 @ 13:24:23 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, sunny moments will alternate with patchy cloud cover.
Today, the maximum temperature will be 75.2°F, while the minimum temperature will be 50°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 68.9°F in October. The lowest temperature today will be also a few degrees lower than the average low temperature.
The maximum temperature will be a few degrees higher than the average highest temperature of 68.9°F in October. The lowest temperature today will be also a few degrees lower than the average low temperature.
On Sunday, in San Quentin, sunrise will be at 7:21 am and sunset at 6:28 pm (PDT).
In San Quentin, the length of the day today will be 11h and 7min.





